I used Claude Code to get a second opinion on my MRI | Hacker News Reader

I used Claude Code to get a second opinion on my MRI

antoine.fi

566 pointsengmarketer715 comments

> There's something incredibly peaceful about being in the hands of an expert you trust. [...] AI can absolutely shatter that feeling in an uncomfortable way [...] but I don't know if I can fully trust AI either.

This really is key. We know we can't trust the AI, but at the same time we're also more comfortable asking the AI for clarifications or confronting it. Not having a time-bound appointment or paying by the hour helps a lot. But even then, more information doesn't necessarily help!

I once brought my 11-year-old car, a Civic with 150k miles, to multiple garages. I figured I'd play the "second opinion" game to correlate what the garages recommended to decide on what needed to be done...

I got 3 completely unrelated recommendations, including one that I knew was invalid! I felt worse off than when I started!

The solution to uncertain information isn't more information, which the AI can certainly provide, it's better information, and AI cannot currently provide that.

> The solution to uncertain information isn't more information, which the AI can certainly provide, it's better information, and AI cannot currently provide that.

I'd argue that AI _can_ currently provide that, but that it can't do it _reliably_, and that to non-experts it's impossible to differentiate, which makes it all the more dangerous.

Isn't that the case with human "experts"? If you had encounters with doctors, mechanics, etc. you'll know you can get a completely different diagnosis for the same problem which obviously means (in most cases) that the person you thought an expert is wrong.

What is needed are studies that will take a cold look at the actual results because AI seems to be required to be perfect or it is useless. It just needs to be as good as a human for most stuff, but in the long run it will be much better. At least that what extrapolating current reality shows us.

We have systems around humans that exist to manage expertise gaps, credibility signals, and accountability. This is part of what makes humans as good as they are, along with specialized training and some measure of meritocratic selection. We license and regulate and account and litigate to make a system that responds and improves.

Some of this might be applicable to LLMs, but some isn’t and much of it would be resisted. This is one reason we’re not likely to get “as good as a human” because at some level we’re not optimizing for the outcomes; we’re optimizing for speed, convenience, some participant’s economics, and underlying beliefs.

I've been going through PT for a hypermobility disorder related injury and I've use an AI to help me figure out "interview questions" to see if a PT knows anything about hypermobility or is willing to learn. I found it helpful to select a new PT after my first PT I trusted made things worse by prescribing stretches and no load progression from rest and recovery back to deadlifts

People put a lot of faith in human “guardrails”, standards, etc. But the same argument could be made that trusting human experts without discernment is as dangerous as trusting AI or Google or whatever other non-human source. It’s always been the case.

On the plus side, it's not like it was blind faith. Human judgement lead me to seek out another expert when I didn't like with the current PT was suggesting I do (no practicing hip hinge movements before moving to deadlift, advising against valsava for heavy lifts, ignoring feedback that a movement was causing pain, prescribing stretches to increase flexibility in a hypermobile person).

The LLM also gave me a bunch of questions to ask a new PT but I didn't have the understanding to judge the responses so I did more research. One of the things the LLM wanted me to ask about was questions about form and force closure and ideally would get a response about the oblique sling across the back. My PT didn't give me that exact response, but explained it in much more lay person terms, but because I had done my research I was able to validate their response was directionally correct. And so far, my experience with this PT has been much better. We're doing block pulls at 70% of my prior deadlift weight, next week we're going to go way back on weight and lower it some to get closer to proper deadlifting and work in some asymmetric loading exercises.

FYI - if there's any reason to believe your particular hypermobility issues might be rooted in any kind of named or unnamed connective tissue disorder, be sure to familiarize yourself with the potential vascular hazards of heavy lifts in general and Valsalva breath-holding specifically. Hypermobility can be a sign that you've drawn a genetic lot which means that you don't even have to lift all that heavy to create aneurysms.

And in keeping with our theme of the limits of both LLMs and humans, unfortunately many exercise and medical professionals may not focus on how some specific genetic lots work until a catastrophic problem presents itself.

> ignoring feedback that a movement was causing pain, prescribing stretches to increase flexibility in a hypermobile person

So glad you found better advice than this!

LLMs are fantastic tools for exploring a topic, coming up with good questions and lines of understanding to pursue with professionals, and in picking professionals. I think they're also poor outright replacements for people especially when it comes to deep and important domains, but still quite useful.

May I ask, is the hypermobility disorder you refer to EDS? If so, what was the injury?

My doc didn't do the full set of test/exam for an hEDS diagnosis, so technically it's just generalized hypermobility spectrum disorder based on past medical history and a near "perfect" beighton score. It could be hEDS though, as a lay person reading the diagnostic criteria I either fit it, or are borderline.

Injury was to my SI joint, I've historically always irritated it lifting, but I set a new PR for deadlifts and it was debilitating for 3 weeks before my other half made me stop being stubborn and see a doctor about it.

I've also had my left shoulder joint surgically repaired after multiple dislocations.

The soothing sound of ChatGPT telling us how right and clever we are…how could it possibly hallucinate, certainly not 5.5

You’ve really honed in on the key issue. This is exactly how keen hackers news commenters approach this.

I have multiple LLM subscriptions at any given time, plus an array of local models.

When I ask a question outside of my domain of expertise I like to ask all of the LLMs I have access to. I also create separate sessions and ask the same question multiple ways.

It’s revealing to see how many different and contradictory answers I get, most of which are presented confidently.

The last time I ran a medical question through Claude I couldn’t even get consistent answers between sessions.

It’s also scary how easily you can lead each LLM to the answer you have in mind. When I would start asking questions about different options that other LLMs had presented, each session would drift toward that explanation.

Have you ever let the LLMs “discuss” with each other to see if that would give better answers?

You might end up with the answer from the most persuasive LLM, but you might also end up with better results.

Wonder if there is a paper out there on this.

The problem is how do you know whether the answer is just the most persuasive or actually the most accurate one? It's hard to figure this out without domain knowledge.

Worse is that LLMs are trained to be persuasive by default. The "you're absolutely right..." stereotype is because these things are A/B tested on response quality and we know from studies people reliably rate vibes better then anything else - e.g. while the quality of hospital accomodations likely has some impact on patient outcomes, the view and decor of the room certainly did not fundamentally change the quality of the care provided but it is the largest determinant in how well people rate that care.

I dunno, I could see it working.

I do something similar with reviewing code: I have one agent write the code and another reviews it, then they go back and forth for a bit improving the code. Seems to yield better results than one agent alone.

Seems like a similar principle.

The difference is that in the code situation, you can run unit tests on the code, compile it, etc. Unless your LLMs are ordering diagnostics and reviewing the results, there is no further information that the LLMs have on the situation. Having a second LLM review the first is counterproductive, if the 2nd LLM is better, why not use it directly? If not, then what prevents it from sending the first on some incorrect tangent?

Also, there are multiple "correct" ways to code something, so imperfect code that solves the problem is still useful. A medical diagnosis is either correct or incorrect.

En, I think you’re just trying to justify your pre-existing position that this can’t work.

https://www.nature.com/articles/s41746-026-02619-0

https://www.nature.com/articles/s44360-025-00007-8?fromPaywa...

Different prompt approaches and training doctors to use LLMs can improve accuracy of LLM-assisted diagnosis. It’s pretty reasonable to hypothesize that LLM “peer review” could improve that as well.

> En, I think you’re just trying to justify your pre-existing position that this can’t work.

I never said it can't work. I just said that finding the correct medical digagnosis is different than finding a solution to a software problem.

Take the output to a Radiologist and verify the veracity of the statements.

Why should a radiologist have to debunk AI slop? They have enough to do already. That's the same mentality that is frustrating open-source repositories with sloppy pull requests, and saying "here, sort this out for me".

Depending on the disease, even in cancer there's myeloma which may cause bone metastasis in many parts of the body with very focal lesions. Radiologists can't assess each and an every one of them, or even to find them all. So AI can definitely help in these scenarios.

And that AI will not be fancy autocomplete: it will be some kind of image classifier that is not trained on Reddit.

At that point, cut out the LLM and just see the radiologist.

there is often discordance between radiologists(& doctors in general) when reading the same scan(same case vignette) as well !

Do people here not realise that "second opinions" are a thing because humans disagree with each other when presented with the same case all the time? It's not just an LLM thing!

The problem with trying to write a paper is the results depend on RNG.

That doesn't make it differrnt from any other problem measured by statistical significance in averaged over a big enough series of comparisons, no?

Run it with temperature 0 if you want to minimize randomness. Sampling from a probability distribution is not a problem by itself. The problem is when the probability distribution prioritizes wrong answers.

With direct discussion, the same tendency to harmonize towards groupthink applies.

Aside from the statelessness GP mentioned, one can insert anti-conciliatory intermediation. "I saw a random claim go by, but something about it seems not quite right. What am I missing? They said: [...]." Weaponizing the bias, and orchestrating the discourse from the harness.

In my day job we tried creating a credit assessor tool using LLM as the credit assessor.

It did great, generated a report on the assessed business that was incredibly detailed and plausible.

Then I started running tests and getting into the details, and found that if you ran the same report on the same data, it generated completely different, still very plausible, results. I could run the same source data through the assessment process 10 times and get 10 very different results. We had to can the project and go a different route.

LLMs are designed to produce plausible results, not factual results. We can fix this when using them for software dev by using linters and tests (though we've all had the experience where the LLM invents an API endpoint). I would not trust raw LLM output in any situation where that kind of testing and verification capability isn't present.

Linters and tests help of course, but they cannot "fix" the problem since tests cannot prove the absence of bugs.

agree, and I think we'll see more use of formal methods with LLMs for this reason

At a certain point it just feels like we're reinventing the concept of programming languages from first principles.

I'm using this new programming language: it's called LLM prompting, and everything is undefined behavior.

Hardly the first time we've done this - we had to do it with compilers too

What's crazy is that there are ton of businesses building processes around LLMs that haven't done this exercise and fully believe the LLM is giving them accurate data.

Yup I use llm to write scripts for me to process data I don't ask the llm to process the data themselves. Even when I wrote something for my day trading I used llm write scripts that do all the processing and predict price movement from that the more data is pre processed the more all the llm come up with similar trades.

> LLMs are designed to produce plausible results, not factual results.

They are true to their name: Language models. It is precisely the same problem in a language: a grammatically correct sentence is not necessarily true.

It's funny that if the LLMs had all given the same result each time (it sounds like) you would have considered it more valid, even though it might just be giving a single wrong answer more consistently.

surely getting the same answer multiple ways suggests it is nore likely in the probability space?

Slavery used to be super likely in the probability space, doesn't make it right...

if two llms independently cite the same law given a certain factual legal question then it generally makes it more likely that the law cited does, in fact, apply to the fact pattern in question ; i think you’re using “right” in a moral sense irrelevant to the comment i was responding to.

But that's the thing, legal stuff is not fully divorced from moral stuff and those things evolve with our morals

your follow-up makes no difference to the main point under discussion : if you ask two different llms about a legal fact pattern and they independently reference the same law, then it is, in fact, more likely that the law is more relevant to the fact pattern than if only one llm mentioned it.

My point was that a human can say "sure laws say this but how about it's a screwed up thing and we change it for the better" and LLM will just do whatever is the highest in probability space

yeah, it would have been harder to see that the LLM was making shit up if it had consistently made the same shit up. But this is also true of humans, so...

you can set the "temperature" which is a lever on how stochastic the prediction is. If you are doing your own inference this is clear and easy. If you are consuming tokens this is outsourced.

What happened to VERIFYING an answer? Does nobody do that anymore?

When I ask an LLM, I trace the sources, and see if they make sense.

More often than not the sources don't actually say anything about the topic in particular...

> It’s also scary how easily you can lead each LLM to the answer you have in mind.

Exactly. Which is why "treat an LLM like a human expert who can answer your question" doesn't work. It's more like a human bullshitter who makes up convincing looking answers, and tries to please you. If the answers have actually some grounding in the training material, that's useful as some kind of holistic google, but often it's not.

> When I ask an LLM, I trace the sources, and see if they make sense.

Professional tip: you can cut out the LLM middleman here and save a lot of time and money.

What would you use then? Google Search, which is just a shittier LLM?

As you say, often you check up on the LLM's "reasoning" and it doesn't follow at all, or you can easily get it to contradict itself with just as much certainty as it had about its previous convictions.

It is very scary to me that people are entrusting potentially life-altering decisions to these things.

> What happened to VERIFYING an answer? Does nobody do that anymore?

The problem with medical advice is that you may not be competent to verify the answer, right?

I agree that asking 5 LLMs to vote and trusting the answer is totally the wrong approach, of course. But LLMs (and traditional material) can help getting more informed. For instance, instead of going to your doctor with the LLM diagnosis and trying to convince the doctor that the LLM is right, you can try to build your own understanding of the problem and go ask the doctor to explain to you what you understood correctly and what you misunderstood.

If you have some understanding, it's harder for a specialist to bullshit you. But you need your own critical thinking and you need to put effort into actually learning something, blindly trusting and repeating what LLMs say doesn't help.

Or more specifically in this case: the patient was obviously insisting on a diagnosis and treatment based on ... a slightly hurting shoulder, with zero visible or detectable phenomena.

So the doctors gave him what he wanted: a treatment ... and Claude told him the treatment was a placebo. Correctly, I might add.

Yeah, it is absolutely not what the patient wanted to hear. BAD doctors! Except ... no, not really.

Does that explain what happened here?

Hmm that's not what I read from the article. The author says the opposite, actually:

> [the orthopedist] suggested I get an MRI, which the clinic conveniently had available. [...] This, of course, means little to me, but their suggested course of treatment was extensive; [...] Coming out of the clinic, I had the feeling they had jumped the gun.

The author also says:

> They injected me with Traumeel, which is registered in Germany as a homeopathic medicine "without a therapeutic indication".

I personally wouldn't want to be injected homeopathic medicine "without a therapeutic indication" without even knowing it is homeopathy.

And my recent experience with multiple doctors at multiple hospitals is that just like LLMs, you shouldn't blindly trust them. Sometimes they make mistakes, and in my experience they never, ever admit it (maybe even to themselves).

So trying to get informed "on the internet" (including with LLMs) feels sane to me, but that's worth what it is worth.

What concerns me in the article is that they have GPT make a diagnosis, Claude review it, and somehow seem to assume that if both LLMs agree, they must not be completely wrong. Just like for code, it takes an expert to leverage an LLM to take an expert decision. A beginner can leverage the LLM to understand the problem better, but they never reach the level of expert just from that.

Unfortunately it's part of lowering the confidence towards doctors, and the solution to that is to try and get informed and ask another doctor. And of course they don't like it if you say "I already asked someone else but I don't trust doctors in general, so I am now asking you to test the both of you".

so the doctors acted just like the LLM

Quite the opposite. The doctors are disagreeing with the LLM, and when the patient doesn't accept, they're putting in a minimal lie in the deontologically accepted way.

This seems to be to be near the opposite of what a sycophant (ie. an LLM) would do.

I've also noticed the opposite problem: Sometimes the LLM, when asked a detailed question (probably with some lead-in), pushes back in a way that betrays that they fell back to general tropes without really considering the nuances of your specific context.

This happens many times, and I usually have to lead the LLM through a chain of reasoning to prove to it that its objection, through generally sound, do not apply to my specific situation.

Someone not as well versed in the subject matter would think the LLM found a smoking gun (which they love to do), and be led on a wild goose chase.

> I usually have to lead the LLM through a chain of reasoning to prove to it

What's the point of doing this?

So that hopefully we can go further in the discussion without it having to repeatedly bring up those (discredited) objections.

But it does forget, and I'd have to prime it again for another session.

> It’s also scary how easily you can lead each LLM to the answer you have in mind.

Scary in this context of course, but I find that it is an interesting thought for coding: it suggests that maybe, a developer who knows what they are doing will end up leading the LLM to coding something that make more sense than a developer who doesn't know and just vibe-codes blindly.

Sounds pretty obvious, but I wanted to say it.

And all it takes is not blindingly accepting the first thing it spews if you suspect there's a better answer (and are in a position to evaluate that better answer).

My step mom was having debilitating pain. A year of going to doctors and no one was able to find a cause. I scanned her discharge paper work which had her prescriptions on it and gave it to Claude. It identified a prescription that had that exact side effect. They later confronted her primary care that concurred and took her off it.

A friend of mine's wife recently passed. They were chasing a suspected heart defect for over a year. She had been intermittently fainting. At about the year mark they decided to scope her digestive track. They found bleeding ulcers from cancer that was all over her body. I input her fainting symptoms into Claude and gastro impact was number two suspected after heart issues.

I have a few of other cases it's helped with. I'm not sure it could do worse than my own experience with the medical system. This is doubly true in places that lack any sort of medical care.

My mom had cancer and she was on regular, suppressive chemotherapy. I put her info into an AI and it correctly noted that her chemotherapy had stopped being effective 2 months prior based on factual lab reports. She was unaware of this. I was able to be her health advocate much more effectively by respectfully asking her oncologist targeted questions. He was already on top of it and was addressing the issue. Our conversation was respectful and, due to my educating myself, went up another level. Ultimately, it was a positive interaction. I was satisfied that he was indeed expert at his craft, and he was satisfied that we were aware of the uncertainty of the new treatment with a risk-based understanding of the viability of success. This was a positive engagement with an expert. In parallel situations around non-health issues, I've found the ego of the expert seems to be the determinative factor in whether or not the interaction goes well.

As someone who uses Claude Code to summarize published research, you have to ground it in peer-reviewed results or it gets lost. But also, I am grounded with two degrees in the source material. So I am feeding it my views and asking if the published work agrees or disagrees with my opinions and I get fantastic results that way to the point of knowing current clinical trials and treatment regimens than most of the oncologists and which led to a great conversation with the clinical trials team. This doesn't replace people, but it augments existing expertise amazingly well.

But also, I hear so many tales of running out of tokens. I ask Claude Code to build a tool to perform a task. I review the tool and then I let it rip if I'm happy with it. As I understand things, most just ask Claude Code to do the task. That seems a bit fraught.

Anyway, you have to impose constraints IMO and ask the right questions to get the answers you need or yes Claude Code (or any other LLM) will eventually just agree with you.

LLMs are well suited to my (some would say annoyingly) curious nature.

when i get an answer, and my first instinct is to ask a ton of follow-ups and "what about"s. i've learned to tamp this down with fellow humans, but with LLMs its great because most of the time the response is "you're right, something doesn't add up... let me try again". i think we eventually converge on to something reasonably true

Yup. This works until it doesn’t (fairly soon thereafter), both from experimentation and understanding of theory. Here’s an illustrative example: https://old.reddit.com/r/Bard/comments/1l1qxk9/why_does_gemi...

Yeah a lot of focus lately on making context windows enormous and putting everything in them. (It should know every detail of your life!) But in my experience LLMs are extremely "prime-able" and also tend to hyperfixate on details.

So when asking difficult questions I tend to remove as much context as possible, rather than adding it. I don't want it to reflect my own ideas or biases back to me, I want an actually fresh perspective.

There's a big difference between a _puzzle_ and a _mystery_. In a puzzle, the goal state is known, and as more pieces - data - appears, the goal gets closer. You know how far you are from the goal.

A mystery is worse. With each additional piece of data, the goal gets farther away. Everything is more and more confusing.

(Popularized by Malcom Gladwell)

Maybe I am missing something but I just find this wrong.

Everything is a puzzle: there is one "Truth" or one diagnosis. You (a smart human) should be able to converge on it by cross-examining your LLMs. By themselves, they have no interest in revealing this, no stakes, which makes them tools only useful at the hands of a capable investigator.

> You (a smart human) should be able to converge on it by cross-examining your LLMs.

What makes you think this is fundamentally different from cross-examining ELIZA? There is no guarantee that the LLM will help you converge on anything. Indeed actually calling out an LLM on BS tends to eventually produce an "I don't know and can't help you further" answer (as it should).

> There is no guarantee that the LLM will help you converge on anything.

Absolutely. The guarantee does not come from the LLM. The LLM is a simply an improved version of Google Search.

The guarantee can only come from a systemic application of epistemic discipline and reasoning, which is very much (smart) human territory.

Put it another way, I could make good decisions with/without LLMs, with some uncertain diagnostics as input. I would have to trawl through 50 papers myself, and it is possible that my decision arrives 5 years too late as a result. LLMs enable trawling and do some of the legwork in connecting the dots, but are ultimately only as capable as the orchestrating human.

The same goes for a human expert. There's no guarantee of convergence and you could eventually end up at "I don't know".

The problem is that the diagnosis might not be known for a while. There's a few conditions and diseases that require an autopsy for a guaranteed diagnosis and therefore are diagnosis based on symptoms in clinical settings.

To provide a competing point of anecdata: A Gemini diagnosis saved me $3,000 in unnecessary repairs on my Civic.

Saved me $2000 on a koi pond pump and filtration system

YouTube has saved me at least that much in appliance repairs... and it doesn't even have an AI. It's amazing how valuable access to information can be.

I would love to hear more about this

These tools can’t reliably fix a 4px misalignment on my icon, better ask them about a medical report… but honestly, I would do the same.

Tbh LLMs pulling data out of medical documents in it's training set and searchable online is likely a much easier task than fixing some weird CSS alignment issue.

Also most of them can’t actually see what they’re doing. It’s hard for me to get things pixel perfect while blindfolded, too.

> There's something incredibly peaceful about being in the hands of an expert you trust

This is the primary business model of enterprise IT and is why companies pay so much for 4 hour disk replacement.

You only got 3 opinions on your car? Why not 50? You could have found a more useful signal by getting more information.

I get it - getting an opinion from a mechanic is time consuming. Not true of AI though.

The best mechanic I ever had kept my ‘98 Subaru going past 200k miles. Once during a repair I asked him to do an inspection and tell me if there was anything else I should replace. He told me not to do that, and that any mechanic would always find something, but not necessarily the next thing to break.

He said it better using an expression I hadn’t heard before or since, something like “don’t go looking for goats when your herd is already with you.”

Exactly. Old parts of the system will be working if you leave them undisturbed. Mechanics have very good intuitions of this sort of thing.

I read about before there's proper engineering / physics theory about this too, it's like a car as a machine is a linear/smooth physics system with multiple weaknesses. Overtime longtime period of running many places might weaken but it still evolves into a slightly different smooth system, until you introduce a replacement which cause a mis-match of impedance or something like that.

Maintenance-induced failures are what it’s called with small aircraft.

You’ll do something to prevent a failure (like, replace an old but functional alternator) but cause an oil leak or engine vibrations because you had to remove the propeller to complete the job.

> I got 3 completely unrelated recommendations, including one that I knew was invalid! I felt worse off than when I started!

I almost had a very similar experience with my beater Lexus. It took 2 independent shops and 3 dealers to finally figure out what was causing the ABS to go off randomly at low speeds. Turns out there's some obscure Toyota-specific tool from the late '90s that picked up a proprietary diagnostic code, and the third dealer was the only one that still had that particular piece of equipment.

...and of course, the thing that's broken has been out of production for 20 years and remanufactured ones cost more than the car is worth. I ended up just unplugging the ABS control module.

Point being: once I knew what was wrong, all the seemingly contradictory information from the other 4 shops suddenly fit together. It's just such a weird thing to go wrong that no reasonable tech would ever have considered it.

> it's better information, and AI cannot currently provide that

It sometimes can, if it straight out never can no one would use it. People use it , lots of them.

I tried that AI diagnosis for my 15 old Ford C MAx too, however with a diagnostic problem the issue is unless you've got the ground truth, there's simply no way to verify any tool / human with a metric that you can compare and decide on future tasks.

The AI might be very good at diagnosing all minor issues, but might not lead to a successful repair, whereas human mechanics are extremely good on 80% of major issues that's not the ground truth, but will lead to successful repairs (that might not address the root but simply patch it). So it comes down to manage expectation / outcomes.

> I got 3 completely unrelated recommendations, including one that I knew was invalid! I felt worse off than when I started!

I would frame it differently: you now know which shops are not to be trusted. So, next time you need one, you will take a better decision.

There are few things better in this world than having a car shop you can trust. I found one and pray that management doesn't change.

You nerd sniped me with the story about your used car. What happened in the end? I really want to know! There are some fun YouTube channels that basically do the same. Someone who is an expert auto mechanic takes a used car to various repair garages and asks them to recommend a course of action.

Sounds like a fun watch! What is the name of the channel?

Especially in the medical field where the placebo effect / mindset shapes outcomes.

> The solution to uncertain information isn't more information, which the AI can certainly provide, it's better information, and AI cannot currently provide that.

Aside from the LLM-ism (it isn't foo, it's bar) - this is a thought terminating cliche. You definitionally don't know if some information is better or not given that you were uncertain about the information in the first case.

"I went to three mechanics and got three different answers" - your takeaway is just "Ah - I clearly need better informed mechanics."

Which is on it's face absurd because if you could clearly judge the ability of the mechanics you wouldn't need their evaluation. You'd just do the evaluation yourself.

There are 3 kinds of mechanics:

Scammers who do the lowest effort diagnostic and "fix" to get you to pay a smaller amount of money to fix the problem in the short term even though it'll re-present itself a week/month/year later.

Upsellers who will find other things "wrong" with your car and pressure you into paying to fix them because they sound a lot worse than they are.

Good mechanics that will explain what they did to diagnose the issue and recommend different options depending on what the issue is.

Funnily enough, I've found that doctors tend to also fit into these 3 archetypes.

Yes, and that's a problem. Doctors (or experts in general) hate it when people don't trust them, but the thing with experts is that people have to trust them. And in my life (and a few times just in the last few years), enough doctors have been wrong enough that I cannot just trust them anymore [1]. If it is important, I will ask them to explain to me, and sometimes I will just ask for a second opinion.

I have read about doctors complaining that "with AI, patients now come with their own diagnosis and don't trust us when we say it's bullshit, and it is a problem". I can feel for them, but if they give the feeling that they don't listen to the patients and the patients don't trust them, it's not only the patients' fault, I would say.

[1]: I have more than one examples of my relatives like this: A doctor says "wow that's bad go to the ER", the ER says "nope it's all good, go home", first doctor learns about that and says "WTF you GO TO THE ER, call me and I will insult them on the phone", and finally resulting in a surgery where the doctors say "they were lucky we could operate right now, because in a matter of hours they could have died from this". How in the world can I trust them after one event like this? Happened to me (in some variation) 3 times. Not based on an LLM diagnosis in the first place: based on a doctor's diagnosis.

Heh, I hear stories like that everyday from my partner who is an ICU nurse. Not as dire, but there are constant inter-department arguments about moving patients because of resource constraints and the ICU could end up completely understaffed/resource constrained if the wrong NP or charge nurse is working. I'm amazed our healthcare system works at all to be honest.

Maybe a difference here is asking AI for conclusions. When I have it do a buyer's report for me, I ask it for "what questions should I be asking? What are typical things that go wrong with this type of vehicle?" I don't delegate conclusions to the AI but use it to educate myself. Then, I can gather further information to make MY decision .. to buy it or not.

I don't think so. LLMs tend to over-index on providing results in general whether it's a conclusion or not. When you ask it "What are typical things that go wrong with this type of vehicle?" you're forcing it to make a conclusion about which results to include and it will almost certainly provide results even if those issues aren't as much of a concern compared to typical issues with other vehicles.

For example, I just prompted Kimi-K2.6 with:

> I'm considering buying a used base model 2010 Honda Civic with 80k miles that's been garage kept. What are typical things that go wrong with this type of vehicle?

It listed 10 issues including the engine block cracking (which wasn't even an issue with 2010 Civics). Started a new chat and asked about a 2010 Toyota Camry, another unbelievably reliable car, and it listed 9 similar issues. Started a new chat and asked about a 2011 Jeep Grand Cherokee, a notoriously unreliable vehicle, and it listed the same number of issues.

Sure it's data to make decisions on either way, but it really all comes down to how good your prompts are and whether or not you can think critically about the output, whether or not that output is a conclusion or just data collection.

A few years ago (before the AI craze), I was misdiagnosed with tuberculosis. I had a chronic cough, and an outsourced radiologist at a clinic found signs of tuberculosis. The findings were sent to the city's tuberculosis hospital, as required by the country's law. The doctors there took the radiologist's conclusion at face value and required me to stay at their hospital for at least 8 months under a strict, prison-like regime. There was no option to say no, because I was considered some kind of biohazard, and by law I had to comply.

Before I was admitted, I quickly found another radiologist, who diagnosed pneumonia instead. I sent his report to the chief doctor at the tuberculosis hospital, and after some deliberation they concluded that the original reading was wrong. Turns out the doctors there can't read scans at all and just believe whatever a radiologist says...

The funny thing is, they had already officially put me on the tuberculosis register and didn't want to admit they had made a mistake. So instead, they simply gave me another paper saying that I had been cured of tuberculosis by them... in 7 days. I'm probably the only person in the country to defeat tuberculosis in a week :)

So if you don't trust the radiologist/doctor, maybe find another doctor if you can afford it? You can compare their conclusions and see if they match. Two unrelated doctors or radiologists saying the same thing is probably about as close to the truth as you're going to get. I'm not sure though whether I should trust AI or humans more. AI can hallucinate, but I've been misdiagnosed by humans so many times too...

How is it possible? You can't diagnose tuberculosis just based on imaging and tuberculosis hospital has to know that!

Yeah, I know! It was strange. They gave me a test, and it came back negative, but they insisted it was negative because I had "latent tuberculosis," which supposedly wasn't detectable by the test yet but was about to become active.

I forgot to mention that, besides getting a second opinion from another radiologist, I also took a more modern test at another private clinic. That test has better detection rates than the one the state clinic used, and it came back negative too.

I have suspicions they had some kind of government quota to keep the hospital staffed with patients in order to receive funding. Or they were just completely incompetent. I pushed back by bringing them another radiologist's report and the results of a better test that I paid for myself, so I guess they decided to back down.

You'll find doctors always believe and treat the worst diagnosis any professional has put on a case. That's a legal thing, not a skill issue.

Think about the consequences of mistakes in both directions ...

Not only that, what is the point confining someone to prevent the spread of a disease about a quarter of the world is already infected with?

I suppose there could be reasons, but I don't know them.

Some countries and jurisdictions still have laws that allow for the involuntary confinement of tuberculosis patients, I guess dating back to the times when tuberculosis was rampant in those countries? And most professionals seem to be okay with the policy:

https://theunion.org/news/is-involuntary-incarceration-of-tb...

>17% said that, as a matter of principle, the involuntary incarceration of TB patients was inappropriate on any grounds.

>Regionally, members from Europe Region had the highest percentage of respondents objecting to the policy as a matter of principle (26.2%) while the North America Region had the lowest (3%).

The emergence of multi-drug resistant tuberculosis in the 1990s is probably one of the reasons:

>Respondents most strongly supported the policy of incarceration for patients known to have multidrug-resistant TB (49.7%)

Because it’s a nasty disease, and they’d like to prevent its spread. A quarter of the world may have TB, but there are only like 10,000 cases in the US every year

Incentives.

Yea I find a lot of stories on the web about doctors misdiagnosing things to have oddities like this that don't seem to make sense. It often seems like the author is leaving something out. Not saying OP is lying, but tb is a very, very weird conclusion to come to from just one radiology report...

See my answer in this same subthread. I was perplexed myself as to why I was diagnosed based on just one radiology report. But the moral of my story is that you can always try to obtain a second opinion from another doctor. I'm not saying doctors shouldn't be trusted in general.

Well you can't diagnose pyelonephritis without a urine culture as well, which my GP kindly noted after I already took a full 14 day dosis of antibiotics. The ER I was at before tried to, anyway.

I had a similar experience. My son had pneumonia and was still filling pain after 10 days of antibiotics. Took an X-Ray to three different doctors, and only one got the right diagnosis (pleural effusion). It's really something we should have a central place with top notch professionals looking at it, instead having each doctor to find by themselves.

I once worked on a medical hackathon concept for computer-assisted population screening for cervical cancer in a developing nation. Community health workers take photos. The AI would look at the images, and make a call of "clearly negative" vs "clearly positive" vs "needs (scarce) expert review". But taking good photos is hard, so it's also "photos insufficient" and "worker needs additional mentorship on taking photos". Only by computes reducing all three costs - expert workload, exam success, and quality-control/training - might successful deployment be financially and logistically plausible for that nation.

What country / municipality are you in? This is not my understanding of Tuberculosis...

Asking for a friend, who is in a somewhat similar predicament — it wasn’t Portugal, was it?

A second opinion is a smart move if one has doubts about their diagnosis. Doctors make mistakes, and even though I've worked with countless great doctors, I've never worked a job where there wasn't at least one who was undiscerning, or downright lazy and negligent. It's hard to tell people to trust their doctor when I know there are plenty of doctors out there like this.

But AI as of right now is worse than any bad doctor I've ever worked with.

The healthcare affordability crisis is only going to exacerbate the trend of using AI as a replacement for a real doctor. I went to urgent care a few months ago to get tested for COVID and two other flu strains and it came out to almost $500.

Anecdotally, several people in my life who embrace less traditional (and sometimes more conspiratorial) views on modern healthcare tend to be the ones that can't afford it. A confident-sounding chatbot to answer questions day and night about what's going on with your body is very seductive in a world where access to real healthcare is getting further and further out of reach.

That's the balance I'm finding it very hard to strike when talking to my family about doctors.

Everyone is either a "all doctors are scams" QAnon type, or they blindly trust everything their doctor says, no matter how fishy, in fear of coming off as one of the former group.

And, to use a phrase we all hate by now, you're absolutely right. When most people have to go into debt to even see a doctor, what can people possibly conclude from that besides "all doctors are out to scam you?"

> I went to urgent care a few months ago to get tested for COVID and two other flu strains and it came out to almost $500.

They have at-home COVID+Flu tests are my local CVS for $35, why go to an urgent care?

Your TB stories made me recall my (fond) TB stories. I came from a country that requires tuberculosis vaccines as a school-entry requirement. I have the vaccine and antibodies. Then moved to a country that didn't have this requirement but I had to be tested to make sure I didn't have TB for things like camps, college, etc. The test is something like a vaccine that injects only dead TB cells, if the injection site welts up from anti-bodies then you had to get another whole panel of tests (like X-ray of lungs). Thankfully I've never had it but TB is apparently no joke. Though blasting my chest with radiation is no healthier :p

Anyway, thanks for sharing!

> AI can hallucinate, but I've been misdiagnosed by humans so many times too...

I've heard this experience from quite a few folks before, but this is my first time hearing about a mandatory 8 months quarantine as a consequence... damn

> I had been cured of tuberculosis by them... in 7 days

Just FYI that might suck in the future. Some countries might deny you entry / visa, or at least require expensive additional screening if you had tuberculosis diagnosed in the past. It might be worth to fight this.

Radiologist. I don’t read MR shoulder exams in my day to day practice, but from the few pictures shown , I can’t conclusively disagree with the original report.

These models are generally terrible at reading medical images. The amount of public training data on the internet compared to the number of scans a radiologist reads in training is minuscule. There’s obviously a ton of medical images in general but very few, and even fewer along with a report are available on the internet publicly for download.

There are vision language models coming out of research labs that are excellent in describing and localizing findings. Still at the level of a 1st or 2nd year radiology resident, but as we all say - this is the worst the models will ever be.

Anecdotally, I've had Claude (Sonnet and Opus latest) consistently misread numbers from screenshots of my macro tracking app. Makes me skeptical of claims about its usefulness for anything requiring accurate image interpretation, let alone MRI analysis.

Absolutely. It's very unfortunate that this post used the worst example possible of using LLMs for medical purposes.

General-purpose LLMs are _fantastic_ at medical diagnosis that do not involve imaging. I am completely convinced that given enough information and time, frontier models already outperform >90% of doctors on initial diagnosis of internal issues and suggesting medical tests to further reject or confirm the most likely theories. To the point where I'm eagerly waiting for the first hospital in the world that's willing to be open and honest about using them for that first step, and then proceeding from there. I'll be on a flight there as soon as one arrives.

At the same time, they're worse than useless at anything involving medical imaging. Asking them to interpret them is worse than trying to interpret them yourself as a layman. And you surely wouldn't interpret them yourself.

    > General-purpose LLMs are _fantastic_ at medical diagnosis that do not involve imaging.

Can you share the reasons that you believe this?

    > At the same time, they're worse than useless at anything involving medical imaging.

What is special about medical imaging that makes AI/LLMs specifically bad?

You can see it in just this PDF report.

It's multiple things. It never shows the subscapularis in the way that people actually look the tendon. It hyper fixates on the axial when I find the sagittal much more useful for subscapularis.

Figure 7. There's an arrow pointing "to the acromial undersurface". The arrow is not pointed to that location.

Figure 5. "thin bursal fluid". This is within physiologic variation, but is calling bursitis.

It keeps bringing up irrelevant normal things like the shape of the coracromipal arch, I assume because lots of websites have information about that as a patient focused possible cause for rotator cuff impingement.

I am reminded of the recent Stanford MIRAGE study which found that LLMs will happily hallucinate answers about medical images if the medical images are omitted.

https://arxiv.org/html/2603.21687v2

I don't understand why this is still confusing to people. The second "L" in LLM is language; these things are AWESOME at producing things that SOUND like language, including code. They have so much training data that it is almost always grammatically correct, and often makes sense. Extending this, it has obviously been trained on data containing phrases like "acromial undersurface" and "thin bursal fluid", and "coracromipal arch", in the context of shoulder injury and related imaging. BUT IT DOES NOT KNOW HOW TO DIAGNOSE ANYTHING. So, it SOUNDS like a radiologist or specialist, and might be in the ballpark of correct-ish-ness, but ultimately is a fancy Markov model.

lol yea I wasn’t going to put in a full dictation on the internet but clearly a lot of misinterpretations from the AI

> Can you share the reasons that you believe this?

Firstly, please keep in mind I'm talking about the entire doctor population of the world here. Not sure which particularly bubble of this earth you have experience with, but note how half the word's population lives in India/China/Indonesia/Pakistan/Nigeria/Brazil/Bangladesh/Russia. Now I do believe that it holds the same for e.g. Europe and non-China East-Asia, but still.

How many patients has the world-wide average doctor seen? How long have they been a doctor?

How many have they seen with the particular condition the patient has?

How much time do they spend listening to and reasoning about a patient? The median in the world is likely under 3 minutes.

How many real-world incentives do human doctors have to deal with?

Given infinite time and resources, and zero external incentives, maybe the median human doctor would outperform the LLM at this task. But this is completely detached from the real world.

> What is special about medical imaging that makes AI/LLMs specifically bad?

LLMs: Besides lack of training data as mentioned elsewhere, they're simply not trained for high-fidelity image processing in general. It's not limited to medical imaging. It's a bit like the "How many Rs in strawberry" thing, but worse.

As for "AI" in general, medical image analysis is a very active field. These tend to be purpose-built though, not general-purpose. It seems likely at some point they'll become mainstream, but there's still a way to go.

Not to mention shoulder MRs can be hard to read. Findings can be subtle and have to be interpreted in context with the exam, symptoms etc.

Yeah, medical computer vision is a (fascinating) field with a lot of ongoing research. SOTA models are highly specialized, and are only getting good enough to be used by actual doctors and patients. Using a general purpose LLM to do this is similar to giving a credit card to Openclaw and telling it to make you rich through the stock market & cryptos.

Somewhat. During residency I developed models for detecting liver tumors in MRI imaging. Like you said, highly specialized and a lot of manual work developing the dataset.

There are now open source open weight “foundation models” coming out of labs that are transformer or mamba based architectures. These will accelerate development.

I can see how your thesis is valid.

Like OP, I also had a shoulder MRI, and asked two AIs for opinion (awaiting a follow up appointment to discuss the results).

They both insinuated much more serious problem than it was (as judged by an orthopaedic doctor).

No trolling here: Do you feel threatened by the advance of AI/LLMs with respect to your field? I would. I am a computer programmer, and it absolutely feels threatening.

As a programmer, I don’t feel threatened by the technology itself, but I do feel threatened by the second-degree effects such as what the technology does to our field, especially in the wrong hands.

I mostly do interventional radiology, which is more similar to a surgical specialty than a diagnostic radiology practice. We do a lot of procedures , see patients in our clinic, have a service that rounds on and follows up on patients etc. I don’t think AI will affect my job much in the next 10-20 years. Advancements in AI and robotics could potentially offload some of our work, but most of what’s out there is underwhelming, but we all know that can change fast.

Even for diagnostic, I’m not totally convinced AI is going to cause a lot of issues. From a medical-legal perspective I doubt AI companies are willing to take on the risk of misdiagnosis . When that happens, human rads will start to get phased out.

In the interim, I think the next 10 years could be a golden period for diagnostic rads. Rads will still be the ones doing the work and signing reports, but people who learn how to use the right combination of tools will become very productive and can make a great living. Eventually payers will re-align but early adopters who figure it out will have a leg up.

I don't have insider information, but: if one of the AI companies really wants their models to become really good at this and publicly available datasets are scarce, they can probably just buy anonymized X-ray/MRI scans paired with the human doctor's diagnosis, and train on them. I don't know what the legal story is around this, but AI companies have near infinite money, so I'm sure they can buy their way around regulations (eg. by buying them from a less regulated country).

That’s a good question.

My understanding is that medical images are part of a patients record (so they must be available for the patient or other docs at the request of the patient) but whoever has collected the images does have some form of ownership. I’m not a lawyer and I have a cursory understanding of this. I believe it would be possible for an AI company to lease or get access to the data through a transaction but I suspect that it hasn’t happened (or happened publicly) due to fear of backlash.

For example I know that some companies like Tempus had access to imaging that corresponded to tumors which had been biopsies for sequencing and they were developing models in house.

I'm a radiologist but can't really weigh in without seeing the full 3D MRI dataset. Regarding this point:

> They performed shockwave therapy on my shoulder even though a recent clinical practice guideline says clinicians should not use or recommend shockwave therapy for rotator-cuff tendinopathy without calcification; I was told during ultrasound that there was no calcification.

Ultrasound isn't a great way to assess for calcification. It'll find large calcification but easily miss small ones. Plain radiograph would be more helpful, but the MRI may have revealed it as well. Either way, shockwave therapy isn't harmful in the absence of calcification--it's just not helpful.

Edit: when a radiology report says something isn't present, there's always an implicit caveat that the finding isn't present within the context of the modality and images obtained. So an ultrasound report can state there are no calcifications while a plain radiograph can report the presence of calcifications without being inconsistent. Obviously very confusing to patients and people unfamiliar with medical jargon, but clarifying this in reports would make them sound even more qualified, "hedgey", and annoying to read than they already are.

Why isn’t diagnostic ultrasound used in orthopedics? They inspect fetus hearts and other organs everyday, why not shoulders? Seems much cheaper and faster.

They do. Ultrasound in orthopedics is a relatively newer field, and there aren't quite as many sonography techs and radiologists experienced in reading these studies, which is likely why you don't see it offered more widely.

Edit: I should mention that ultrasound is basically unusable for evaluating bones. Sound waves can't penetrate bone, and so you end up just seeing a huge black void. That's a huge orthopedics use case that ultrasound just can't benefit. However, ultrasound is fantastic for evaluating muscles, ligaments, tendons, and other superficial soft tissues.

Serious question: If the bones specifically show up as black on ultrasound but the surrounding (muscle, etc) don't, wouldn't that be an option that could be used to try to determine a broken/fractured bone without the radiation from an xray? Or are the gaps in those cases usually too small to pick up?

It's a manual, non-standardized process without a standardized output. Image quality depends both on user skills (how deeply they press the sensor on the skin) and the machine they have. Unlike CT/MRI the examination results cannot be easily shared and compared between patients for studies.

We order ultrasounds all the time for shoulders (for like soft tissue issues; for trauma, you'd start with an xray). For other joints, such as the knee, MRIs are a better choice (unless htere has been substantial trauma, in which case xray initially or further), though more expensive, unless you're excluding a Baker's cyst, in which case an ultrasound is fine.

Since MRIs are more expensive, private doctor's might order them instead of an ultrasounds.

(I'm a doctor)

Where are you? Pi and work comp attorney in medium US midwest metro. I've never seen one in 20y. Not from HCA ERs, medicaid er visits to univ affiliated er, nor prestige practices.

They're used quite a bit for nerve entrapment—both in diagnosing and treating.

Ultrasound was overlooked by US medicine as a first line imaging tool for a long time because it takes real skill and experience to do it right. But it's making a comeback. We've had Chinese, Indian, Australian, and American doctors visit us for one to two month stints to build up their skills.

Given the skill involved, it's probably a liability concern they don't want the exposure over there.

Huh, I'm reading and looking up these words you guys are saying and it is starting to look exactly like the symptoms I have been having with my own right shoulder! I feel like a giant gaping rabbit hole just opened up next to my desk.

We're discussing calcific tendinitis (https://radiopaedia.org/articles/calcific-tendinitis?lang=us). If you think you have it, you can see a doctor and consider shoulder radiographs to start.

If you think you have it, then you don't. If you have it, you won't think, you'll know.

Spoiler: because it hurts like hell.

That doesn't make any sense, it would imply that anything that hurts would automatically be the same diagnosis.

Both inductive and abductive reasoning would say that just because something hurts that doesn't mean that everything that hurts is that thing.

> I'm a radiologist

Any comment that doesn't start with this or similar qulaification should be taken with a grain of salt (yes, including this one).

Medical imaging is one of those things everyone thinks is simple because they don't know what they don't know. I'm a cardiac sonographer, and I have to assume radiologists hear at least as many eye-rolling takes on AI coming for their job as I do.

Ahh, AI is coming for your job.

Full sarcasm, is there one that’s that’s more immune?

cough Immunology

I mean, probably not. No expert, but everytime I go to an immunology meeting (I'm a paediatrician) they've got a whole stack of new diseases. The field is moving fast, and there has to be a careful amount of shared decision making about when to test, what a positive test means and so on. I reckon they're as safe as any of us.

yeah, you said "one that is more immune"

I don't completely understand what you mean, but I can tell you for my job, having AI tell you how to get the images is (without exaggeration) like putting someone who's never played an instrument on stage and saying "don't worry, the AI will show you how to do it."

I did a lot of cardiac MR and often GA cases. Sometimes after the scan an echo would be done.

I know my anatomy and etc and have done a short stint in ultrasound. I have no idea what you are doing or looking at and can identify pretty much nothing.

Echo techs are going to be around a lot longer than MR techs.

> So an ultrasound report can state there are no calcifications while a plain radiograph can report the presence of calcifications without being inconsistent. Obviously very confusing to patients and people unfamiliar with medical jargon

This is being overly nice, I think. Anyone who doesn't understand this is an idiot imo. You would have to assume that every type of diagnosis instrument has infinite clarity and is always correct to be confused in this case.

Reminds me of the Babbage quote where somebody asked him, if I put the wrong question into this computing device, will it still give me the right answer? His response, paraphrased "I can not fathom the logic of the minds which would come up with such a question".

"On two occasions I have been asked [by members of Parliament], 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question."

Off topic but I have always felt this seemed like his misunderstanding rather than theirs. It’s an odd question, but it’s a very sensible point to make if Babbage has just told you this will solve the problem of mistakes in calculations - humans being involved at the start means human error still plagues the output.

Looking into his biography, it seems that he was indeed pitching the engine not as a means of efficiency, but as a means of avoiding mistakes in mathematical tables. It would have done Babbage well to insist he couldn't possibly solve all classes of mistakes, but would have solved a great many of them! "Why yes Senator, you are quite intelligent and handsome and make a fair point, allow me to give you the finer picture..."

Would have also been a fair point if Babbage had channeled his inner techbro and insisted it would directly replace human calculators; simple machines like Babbage's will chug along blindly on obviously erroneous data, but humans for all their sloppiness can often backtrack on errors.

> I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question.

Well, he did diagnose the situation correctly. He couldn't comprehend the confusion of ideas that provoked the question.

I'm also not entirely sure it's an odd question to ask. To this day, users are surprised when their software produces garbage output instead of failing. Perhaps the members of parliament were expecting some form of input validation or sanity checking out output.

To quote the LLM-ism, they were making a sharp point. It doesn't matter how precise the calculations are if you're calculating the wrong thing.

I suspect their sarcasm might have escaped Babbage who seems to have been on what we now call "the spectrum."

Actually, I would be really pleased if a member of Parliament asked that. That shows a level of deeper consideration.

Isn’t there a saying about there being no stupid questions, only stupid answers or something?

> Anyone who doesn't understand this is an idiot imo

I disagree. A priori it's not obvious to a layperson whether or not a statement that uses unconditional phrasing is intended to be authoritative or conditional on something unspecified, like the resolution of the measuring device. This goes for any sufficiently technical field.

If you got the brakes checked on your car, and the mechanic did <something> and told you there are no issues with them, and you then took your car to a different mechanic who did <something else> and told you there is a problem, you would not be an idiot for thinking that these conclusions contradict one another.

> Anyone who doesn't understand this is an idiot imo

I don’t think that’s true. Avoiding this mistake requires knowing that an ultrasound may not detect calcification. For a patient reading their own report, I don’t think that’s intuitive. I would expect most people to read “no calcifications” and assume that their joint has no calcifications.

It's a fatal flaw to think counter-intuitive == wrong.

Most people should have learned at a young age that absence of evidence is not evidence of absence. My 8 year old understands this. After all, you can rarely ever prove something does not exist, only that it is unlikely to exist.

If a report states that X was not found, it does not mean X did not exist, it means it was not found.

What may be lost on the layperson is the nuance and understanding of how thorough or not a particular scan is and how much weight to give the findings and thus the odds that the report is correct.

This is - by far - the most stupid stuff I've read on the internet the past few days. They didnt find cancer either (as well as a plethora of diseases that could be related to the symptoms), and afaik its not in the report.

Yah you can argue that the tool is not ideal for that diagnostic, yadda yadda. I get it, and in the end I agree with the subtle difference you highlight, because it is something that makes sense to a certain kind of people. You know how many medics would read the report exactly like the author did? Too many.

How do I know? Im not in a wheelchair after being constantly misdiagnosed by using the wrong imagiology technique by (mostly) chance, and a good help from friends, including a surgeon. This seems to be a case where AI would be a valuable doctor tool for differential diagnosis; instead we have know-it-alls that can't bother to verify, and AI that often gets details wrong. That is the problem.

I think it’s the combined depth AND breadth of knowledge that can be captured by AI models that is going to make them way better than most humans at this kind of stuff.

It's like when finding out about the sex of your baby via ultrasound before they're born. If you're told it's a boy, you can be pretty certain you're getting a boy. If you're told it's a girl, you shouldn't get too attached to the idea. The ultrasound tech might just have missed the evidence your baby was a boy.

> Most people should have learned at a young age that absence of evidence is not evidence of absence.

That might be true, but it is definitely not the world we live in.

But the problem was that the report is not saying "not found", it is saying "is not present" or "there is no X".

And I think we can easily have examples where we can reasonably trust this, and a spectrum of such.

E.g. there is a math solution and the report says "there is no errors in this solution", you would imagine that to be quite reliable, no?

"Calcifications not found" is a different statement from "no calcifications".

Even then, the context that "ultrasound isn't a great way to assess for calcification" is important when reading either statement. Laypeople don't necessarily have that context.

> Most people should have learned at a young age that absence of evidence is not evidence of absence.

I’m fairly sure that there are no lions in my house. Lions are quite large and I’m capable of detecting lion sized objects with my eyes.

To demonstrate that something is not present you first define the object, then come up with a test that will reliably detect the object. If the test comes back negative then the object is not there.

In a strict philosophical sense I cannot prove that there are no lions in my house, the external world might not exist! A hypothesis that no one has thought of might be correct and that hypothesis could show that there are invisible lions in my house!

However I intend to act with the certainty that there are no lions in my house. Because I have no evidence of lions in my house.

Absence of evidence is evidence of absence.

It’s 2026 and my computer will happily give me the right answer even when i make typos. I love it.

Exactly. I was about to reply to the comment with “perfect example of not knowing what you don’t know” in terms of self-diagnosis.

My internal model is/was “if the scan wasn’t set up / can’t detect the thing, why would the statement be present at all?”.

That implicit assumption is really subtle.

Not really, it just requires to assume an ultrasound has infinite, perfect resolution when you are faced with a different imaging tech which reports things that didn't appear in the first one. That's just stupid.

> You would have to assume that every type of diagnosis instrument has infinite clarity and is always correct to be confused in this case.

There's a difference between 99.9% clarity and 50% clarity. Even if neither exactly equals 100%, it's understandable that a layperson would expect different language between them

This comment sounds like it's written by someone who doesn't interact with real people very often

I’ll bet they’ve got a debilitating case of engineer’s disease, too.

> Anyone who doesn't understand this is an idiot imo

Even if this is true, so what?

Idiots get sick at least as often as others, and the medical system needs to work as well as it can for that population too.

I don’t think people are idiots if they don’t understand how a normally intelligent person might not intuit that. I do think they have a seriously underdeveloped theory of mind.

> idiots

> seriously underdeveloped

What's the difference?

Between being an idiot and having an underdeveloped theory of mind?

It’s funny that the answer to this has increasingly become “yes” over the last few decades.

Agreed. Not a radiologist, but I do a fair bit of MRI research. Experts vs lay people probably have different success with getting the right diangosis out of a frontier model. Subtle changes in prompts can cause different diagnosis[1]

[1] https://www.nature.com/articles/s41591-026-04501-8

So Opus might be correct?

Does radiology really make +$700,000.00 a year ?

Someone on reddit claiming to be a radiologist claimed that.

I wonder where the savings will go when those jobs are gone.

To the consumer! Haha just kidding. We all know where they'll go.

> Does radiology really make +$700,000.00 a year ?

The radiologist I know does not, but they are paid very well (and these numbers are always dumb when you're not sure if they're living in Manhattan vs literally anywhere in Kentucky)

Like most medicine, a large % of the job could be done by any decently talented person willing to follow instructions and shadow for a few months.

Like most medicine, the remaining % is what you're paying for, because it is literally life and death and you can't do things like "pull the logs" or "lets turn it off and take it apart" or "huh i need to put this down and come back later". Even in radiology, because "well lets just do it again to be sure" is often not a viable option.

While there is a problem in how we have inflated the cost of education for medical fields, the insane health insurance issues (US obviously, but it does have some effect globally when the expert radiologist you hire from the US to help with research costs that much), and probably some better ways to approach splitting the work for the entire field, like most professions dealing in life or death, medicine likely will always be paid well.

You know the radiologist you're responding to is a real person? Your last line seems needlessly callous.

Physicians salaries account for about 8% of healthcare costs in the US.

The savings go straight into patients' worse outcomes.

As a rad tech, YOU TELL ‘EM DOC! I do like some uses of AI I’ve seen that help patients advocate for themselves or understand basic things like blood panel numbers, but it’s really bad at glazing people and leading them down medical rabbit holes kind of like the OP.

You would think that the AI would point out that calcium is best demonstrated on Radiographs/CT imaging vs Ultrasound or something to that effect.

Semi-related: my father has complications from a motorcycle accident ~25y ago that crushed arteries in his leg coupled with diabetes (insulin / kept sugar at ~100 and his A1C was kept under 6.7 for ~15y). 6w ago had to have his toes removed due to dry gangrene; they eventually (2.5w ago) had to remove his leg below the knee because of the severe blood flow issues below the knee.

Between the toes and the below the knee amputation, there were no less than 15 different doctors and PAs / related personnel who COULD NOT COME TO A CONSENSUS. They would just tell my mother and I (PoA) the details; they refused to come up with a singular plan of action moving forward, leaving it up to us to make 'an informed decision,' something that's IMPOSSIBLE when you have to take up to 15 different opinions into consideration.

What exactly are we supposed to do as patients/family members when medical personnel cannot give reasonable paths forward and instead just throw a bunch of shit over the fence at you and tell you, "you decide what to do from here," regardless of how many VERY DIRECT conversations I had w/the 'care team' on doing better to provide a limited array of options and reasons/likelihood of 'positive outcomes'.

I'm used to dealing with a wide variety of stakeholders/SMEs in decision-making; it's my job to apply my extensive industry experience to present our clients with their options, ranked and reasoned. Doctors, in my experience and most recently with my father, clearly do NOT do that (I assume due to liability; but, no real idea, honestly). So; when dealing with LIFE CHANGING circumstances, what are we supposed to do except rely on what might be able to offer more analysis and option narrowing w/AI?

I certainly don't want to make the job of medical staff more difficult by putting out crazy theories I found on the interwebbernets through my own research, etc; but, when we're having to deal with uncertainty and insanity, what else can we do?

This lines up with my experience with my mother, though it played out differently. In her case, she would switch doctors every ~5-10 years and each time they'd basically say everything the previous doctor said was wrong. First it was "you have Lupus", second it was "actually it's some other autoimmune disease", then it was "actually whatever you had has been in remission for some time now and you've been taking brain-numming medicine for no reason." Then it was "you have cancer", "it's a rare one", and "oh turns out the brain-numming meds have a correlation with rare cancers". The cancer part was handled well (albeit unsuccessful) though. After such a bad time with rheumatologists, I was shocked by how competent people were when it came to cancer.

All of the above was intertwined with brief stints with doctors that would just berate her for being a painkiller junkie, even though she hated the stuff and just wanted to find/fix the problem.

Kind of a rant, really. I'm not sure how to tie it back into AI. I do wish we had AI at the time so that we could at least cross-check, but I also understand that doctors are already sick of patients self-diagnosing on the web and that AI probably just makes that worse. At the same time, if our medical system could catch up a bit (more doctors? less corruption/paperwork? not sure what it needs) then maybe people would be less inclined to take matters into their own hands.

I'm sorry to hear that. The accusations of drug seeking are particularly galling.

AI is absolutely a god send for patients navigating the medical system.

I know the US system is horrible and I sympathize with doctors doing their best within it. But we must admit, they are also responsible for the countless stories just like yours, and have contributed to the public's deteriorating trust of medical institutions. It's not just the insurance companies and conglomerate CEOs.

I recently discovered I am allergic to hydrocodone and codeine, and the effort I had to go through to get oxy instead was stressful and I felt I had to bring all of the extra pills with me everywhere to show I wasn't drug seeking or selling them. And I pointed out that inwaa shooting myself in the foot for all future desires by asserting I am allergic.

P. S. Opiates work, very well. If you tale one and it doesn't work, you might also be allergic. Hydro didnt really work, then itching and puking started after 2 days of untouched pain(essentially, a reduction of 2 points). Codeine nausea.

I wasn't aware of the possibility.

Probably liability... on the amputations I indicated and contraindicated, it's increasingly difficult to navigate trough patient perceptions while not disclosing so much as to give them rope to hang us. Some decisions are a game of probability that often we don't have clear numbers. In trauma, I have both cases where I recommended an amputation and at last minute decided to see that happened and the patient is walking with their leg today; and cases where I didn't recommend and later had to amputate as the lesion evolved. With cancer it's more straightforward, the cancer is what dictates the surgery... some cancers have poor response to other treatments, so we amputate. Some cancers had invaded the neurovascular bundle, so curative options involve necessarily amputation to get good margins. In cancer there's less doubt in the prognosis, so less chance of legal ramifications.

Keep in mind I’m not a doctor, just the guy who takes your images, but I believe it’s all liability. I really wouldn’t want to be a doctor from all the crazy stories of liability stuff I hear everyday.

I empathize with you as my grandmother is also being what feels like gaslit by several doctors being told her symptoms are dementia and not from the chronic UTI’s she suffers from, but when the UTI’s clear all of a sudden no symptoms. Our medical system is very frustrating, between doctors who don’t have the time needed for complicated cases, or the threat of every patient suing them causing them to be overly cautious.

I think as long as you’re aware of the pitfalls of AI, as you seem to be, it’s a solid tool for helping to understand medical situations with the right amount of double checking.

I don’t think our system will improve until 1) We increase the amount of doctors in our country and tell Congress to quit limiting the amount we can train yearly, and 2) the system of liability for doctors is changed to be more like New Zealand’s where their liability insurance is nationalized and they’re not at constant threat of losing everything to a lawsuit over a patient who wouldn’t take their meds and got worse (the cases are generally much more complex than that, but the idea is it’s not always the doctors fault as media would have us believe).

I feel like the promise of these models is to help people make more informed decisions. Improving the knowledge economy and general understanding.

The problem is these are just statistical models at the end of the day, so you need to know something to be able to identify the errors. You can’t let them really be autonomous and you also can’t really have people turn into glorified approvers. If the machine is correct 89% of the time, you cannot make people responsible for that 11%. It’ll just cause automation fatigue.

tl;dr: the actual use cases of these LLM (or generative AI in general) is rather limited, so it is offensive how much hay has been given to them eating the entire capitalist system. They are not fit for purpose.

Why should we not expect a computer vision model to outperform humans on reading medical images?

The human experts are literally just a trained biological neural network. In this domain they are not capable of anything a computer can't already do.

> Why should we not expect a computer vision model to outperform humans on reading medical images?

Humans can identify. A computer vision model can return a statistical value. Both can make errors, but these errors are orthogonal to how we work and what is being asked of them. I think a CV model can absolutely provide value as augmentation. Identifying possible misses or a different diagnosis worth considering, but that is not what is being asked of them here. The pitch by Altman and Amodei is not to say, “This tool that might cost $1,000/month can help increase the accuracy of your diagnoses by 10%,” instead it’s, “This tool can allow you to keep 10% of your workers to monitor it and you can fire the rest. Also, the workers carry all the liability.”

> The human experts are literally just a trained biological neural network. In this domain they are not capable of anything a computer can't already do.

People need to stop making this baseless claim. Human beings are not stochastic computing devices, we are not neural networks. We don’t fully understand human cognition and intelligence. I have the highest confidence we will figure it out one day, though.

Yes, neural networks were based on a superficial view of the human brain, that’s it. For instance, it is biological impossible for the human brain to do backpropagation, which is kind of important for a modern neural net.

This really rubs me the wrong way because it's objectively false, but people keep bring it up because I think people want it to be true rather than accepting generative AI for what it is: a tool with a bunch of caveats.

Whether brains do gradient descent is irrelevant to a CFO deciding whether to staff one radiologist or three. The market doesn't care if the model "identifies" versus "returns a statistical value", it cares what the error rate costs versus what the salary costs, and it prices liability into contracts either way, same as it already does with autopilot and compliance software.

Also disagreement among human radiologists has been documented for decades, so the clean expert baseline you're defending doesn't actually exist outside this argument.

When the identifiers pass human-detection-rate percentages, it will most likely be cheaper to hire a fall-guy for the liability with a much smaller salary, I think this will be a big market in fact.

Thank you. I think my comment was careful to specify "in this domain" and "computer vision model"; I didn't say anything about generative AI. The reference to neural networks was hopefully an obvious rhetorical flair, rather than a one-line assertion that computers and brains are actually equivalent.

I also didn't say anything about whatever Altman or any specific company is doing.

The simple fact is that we send humans to school for years to learn to read and classify these things. It's something computers will be able to do strictly better.

> It's something computers will be able to do strictly better.

I don’t think there’s any evidence that’s true.

Really? What about the use of computer vision for satellite imagery? Facial recognition?

The premise seems to be proven, just not extended to the medical domain yet.

I think you’re conflating detection with interpretation.

Radiologists like to distinguish between "perception" and "cognition", but the reality is that cognition is the same statistical process machines use, just without knowing the actual probability numbers.

Satellite image processing can certainly detect a hotspot then interpret it as either a small brushfire or a missile launch. Facial recognition detects my features then interprets who I am. It's all pattern matching just at different scales in different parameter spaces.

i'm sorry, but AIs only "know" about stuff that they have been trained on.

If we would allow AIs to be trained on the petabytes of medical data hidden in hospital systems, they would most likely be much better at diagnosing illnesses and conditions than the average doctor.

(Justifiable) Privacy around medical records so far prevents this.

You think you're cheering for humans, but in fact you are gatekeeping healthcare.

I dunno... if we gave an AI all of these medical records as training data, wouldn't it be trained to give the same answers as the doctors already gave, without knowing whether those diagnoses were correct or not?

Except it would see all the times similar starting conditions led to different diagnosis and recognize those contradictions. Or all the different treatments and their outcomes. And it would never forget or have bias.

It would be like the sum of all medical professors in existence.

Your see this in coding agents too. The only times so far I’ve really seen Opus tie itself into a knot is where I’ve asked it to fix something that I thought was broken but actually wasn’t in the way I had described. It will bias towards your description (I’m guessing because that’s the most recent context it has?).

Radiologist who does read shoulder MRI would like to add that over half the annotations are wrong, glaring mistakes in anatomy and cardinal direction which begs the question of how is it making these findings without knowing what it’s looking at (here’s a hint, it’s hallucinated based on reports it sees).

What is "it"? Claude Opus 4.x? ChatGPT-5.x? GLM? DeepSeek? RadFM? Med-PaLM?

Claude, the model in the post.

Can vouch for it. Ultrasound hasn't found calcification in my shoulder but MRI did. Exactly as you said, because it was very small.

It funny to see the community here expects the human body to be treated like a deterministic function: for input X expect output Y - and that transfers to diagnosis - people expect to receive the same diagnosis from different specialists for the same issue.

Given human body complexity, the diagnosis is a compound output of the experience, knowledge gained throughout the career and diagnosis methods/equipment, the title (like Dr) is a certification imposed by the state so its "safe" to let people practice since they passed "the bar" - but that doesn't imply everyone will be treating the same.

Some specialists update their knowledge monthly, some yearly and some don't do it at all, there are so many variables in play here (geo, politics, even weather haha).

Having said that, choosing the specialist is really important, getting opinions about their practice and their speciality, you can only maximize your chance of getting the right diagnosis, but don't expect to get it right just because somebody is called a Dr.

I'm not sure what your point is. Are you saying that medicine is inherently fallible and therefore AI is more likely to make a good diagnosis - particularly a cluster of specialist AIs?

Yeah I think the OP is muddling the point by conflating "physician's version of the diagnosis" with "The Diagnosis".

There is absolutely one "The Diagnosis". Human body is a machine, albeit a very complex one, and all measurement sources have noise. But they are all measuring one reality, and if there is a problem, there should be one explanation that all measurements align with. They can be noisy but can never be conflicting (instrument error notwithstanding).

Physicians' ability to arrive at "The Diagnosis" would vary, but it does not mean one does not exist. I am not sure if characterizing human body as derministic or not is relevant here.

I think „the diagnosis” is over simplification and lots of professionals would disagree that there’s always a single one. As a patient your goal is to eliminate the symptoms of whatever is going on in your system. Often times there could be many reasons for it and only curing one can help you already. The diagnosis is a help tool to choose the roght curation method.

Thus, chasing the „right” diagnosis (whatever that is?) is pointless, as it only the outcome (reducing symptoms, stopping the damage) can tell you if the diagnosis was right, but not the only one right.

> I think „the diagnosis” is over simplification and lots of professionals would disagree that there’s always a single one.

"The Diagnosis" does not mean "one root cause".

Situation: my car has some unexplained vibrations. 1. Mechanic A says that it is the engine mounts 2. Mechanic B says that it is some weirdness in how the exhaust assembly is hanging to the underbody 3. Mechanic C says that it is just my wife farting

I replace engine mounts and 40% of the problem is reduced. I then drive without my wife and the remaining 60% is solved.

"The Diagnosis" was: 40% mounts, 60% wife, 0% exhaust.

There is always one "The Diagnosis".

> There is always one "The Diagnosis".

No, that is not true at all.

This is a kind of thinking a lot of programmers fall prey to. The real world, outside of code, is a very fuzzy and inherently analog place. There is very rarely one in any complex system having a complex problem needing a complex solution. At some point even the definition of diagnosis gets fuzzy.

The best demonstration of this in medicine is probably the DSM-5. What, really, is the difference between Narcissistic Personality Disorder and Borderline Personality Disorder and Generalized Anxiety Disorder? Can they overlap? (Yes.) How do you treat them? (It's not easy.) What about depression: how do you tell if someone has Major Depressive Disorder or Bipolar Depression? (Again: not easy.) In some circumstances the only way to tell the difference between the two is what drugs work: if antidepressants help, it's Major Depression; if mood stabilizers help, it's Bipolar Depression. It's kind of odd to define a One True Diagnosis by "well we fixed it this way, so it must have been that", with no other way to do it, isn't it? (What if both work? What if one works for a while, then the other works? What if treatment with antidepressants induces bipolar (hypo)mania? All of those happen!)

And that's just a few examples.

Pyschiatry gets complicated because the failures are not mechanical. Even if you could image every single neuron in a person's head we do not have a very good way to define an algorithm for these issues. I do not have a good answer for psychiatry.

> This is a kind of thinking a lot of programmers fall prey to. The real world, outside of code, is a very fuzzy and inherently analog place.

Having said that, I would vehemently reject and push back against this, and without doubting your sincerity, characterize it as an ad hominem.

The vast majority of issues with the human body are mechanical in nature. Restricted blood flow, unwanted tissue, a broken bone, a bad valve etc. These are causal descriptions of "disease". Where causal descriptions exist, the "One True Diagnosis" principle holds. Psychiatry just happens to be unique in that it is a fuzzy science where we rely on checklists and ultimately all diagnosis is probabilistic.

EDIT:

> This is a kind of thinking a lot of programmers fall prey to. The real world, outside of code, is a very fuzzy and inherently analog place. There is very rarely one in any complex system having a complex problem needing a complex solution. At some point even the definition of diagnosis gets fuzzy.

I would also push back against this mindset in general. This is not a falsifiable claim, it is incoherence as an argument, and I do not need to be a programmer to hold this position.

That the real world is analog is irrelevant to its amenability to causal explanations. Or "fuzzy": "fuzzy" in this context just does not mean anything.

I am not trying to sound exasperated or win internet points, just impress this point on you and anyone reading this. We can write math to predict weather, make it tractable to solve using approximations, tolerate IEEE 754 weirdness, and finally tell what the clouds will do a week from now. This is nature telling us that there is a pattern to how it behaves, and it is the only weapon we have as scientists.

To say that nature is not amenable to explanations is a very defeatist thing to say: neither Newton nor Einstein nor any of the million-odd people that have built modern society would exist if nature did not have causal explanations. I urge you to reject this defeatist thinking.

There's quite a few diseases and conditions that don't have definitive tests. For example, alzheimer's and parkinsons are diagnosed based on medical history and symptoms. With alzheimer's an autopsy can tell for sure but that's not much help for a patient. I'm sure there's other things out there with similar situations. Hard to come up with "the one true" diagnosis with an definitive way to determine it.

> With alzheimer's an autopsy can tell for sure but that's not much help for a patient.

Ok let us unpack this statement.

For your point to hold, I would have to be saying "all kinds of practical diagnostics are invented now. No progress can be made in better diagnostics".

If Alzheimer's can be validated by slicing open a dead patient, there is a causal mechanical explanation for the disease. If we can not confirm that defect without slicing open the patient, that is a limitation of 2026 tools. The "One True Diagnosis" is an Oracle explanation that all real diagnostic techniques try to approach in the asymptotic sense, and it is helpful exactly because it clarifies in discussions like this.

There are going to be diseases where we do not yet have causal explanations. Or where we treat them without establishing them. Hypertension is one example: while technically it can be caused by vascular stiffness, some weirdness with the RAAS system, some hyperadrenergic weirdness, practically you get a lot of mileage out of just prescribing people telmisartan if they're old.

That does not mean the frontier of hypertension is settled, or the 10% who do not have a vascular stiffness problem would not benefit from better causal models of hypertension. Science is us continuously pushing back against the fog: of the tools we have in 2026, some are great, some are imperfect, some are promising etc.

There might be "one true diagnosis" but there's no reason to believe that we'll have practical diagnostic tools to get it. If we need to sample the brain chemistry to diagnose a neurochemical disorder, it's probably not too useful in a clinical setting. The world makes no guarantees that we will be able to differentiate between certain situations with tools that we can realistically access and build.

Today's limits are known and undisputable. Tomorrow's limits are a promise: some promises over-deliver, others under-deliver. :)

Regardless, to bring the discussion back to the claim at hand: at all points in future, we will need the ability to reason under partial information. "Absolutely flawlessly complete diagnostics" is an asymptotic goal we get closer to but never reach. This is both very doable for a disciplined human, and very hard to outsource completely to an LLM. Treated as tools operatored by competent users, they are magical. But they can not outperform their user.

> We can write math to predict weather, make it tractable to solve using approximations, tolerate IEEE 754 weirdness, and finally tell what the clouds will do a week from now.

Even so, we’re operating on approximate datasets and sometimes our predictions are wrong. I think a lot of the medical field is like that - people are doing the best they can with what they have.

It’s entirely possible that DSM-5 will be viewed as flawed and inaccurate in a century, but it’s better than nothing.

Similarly, for every possible medical affliction there could be “The Diagnosis” that would describe how to treat it, we’re just unable to be that accurate and thorough. The fuzziness just means that you’d need 10’000 data points about the state of the body instead of 10-100 and also be able to reason about them.

Not GP, but I'd argue that over-rationalism and underestimating both the complexity of the real world and the theory-ladenness of one's perspective is just as dangerous. The point is not to be paralysed by complexity, but to acknowledge it and acknowledge the reality of unknowable unknowns in our decision-making. I don't consider that defeatist in the least. Epistemic humility is the rational response to a complex world; courage is to act anyway.

Exactly!

Quantum mechanics is an excellent example here. It is not "defeatist" to accept that we don't know where the electron in the hydrogen atom actually is. Or to accept that if we really, really wanted to figure out where it is, we can only do so by disturbing it enough that its position is probably no longer a useful thing to know.

These are fundamental features of the world (at least according to our best theories of Nature), and it is only by accepting them and the uncertainties inherent to them that we are able to make progress using those theories. Among the consequences is that thinking about "the position of the electron" is not so useful; we instead need to leave position behind and start thinking using a new thing, "the orbital of the electron". This is a major conceptual change, and internalizing it can be Very Difficult for some people.

But the world does not care. It and its complexity owes nothing to anyone. It is us who must adapt to the world, in all its fuzziness and incompleteness. Nature will break the rigid, but if you bend, you can soar.

Most disorders in the DSM-5 are defined by polythetic criteria, i.e. meeting X out of Y symptoms from a list for a given duration of time, or by conjunction of polythetic criteria. These definitions are socially constructed and statistically validated for pragmatic use, but very rarely have definite underlying biological markers. Especially as concerns personality disorders, these disorders can also simply be an inheritance of cultural or political baggage and prior psychoanalytic theory.

> In some circumstances the only way to tell the difference between the two is what drugs work: if antidepressants help, it's Major Depression; if mood stabilizers help, it's Bipolar Depression.

This is ridiculous. There is zero mention in the DSM-5 or ICD-11 of "if these drugs work, it's this, otherwise it's this." I would question a psychiatrist dispositively making a diagnosis on such grounds.

> It funny to see the community here expects the human body to be treated like a deterministic function

In a community largely made of people whose job it is to produce such functions, I'd say it's to be expected

It's funny (and a little depressing), because HN routinely assumes that their world view, and thus, their domain expertise, transfers.

There's no shortage of tech people convinced they deeply understand law, medicine, philosophy, etc. despite never having read much on the topics.

The internet at large is full of armchair experts, it's not just a tech thing.

People in tech have particularly big armchairs though.

Most of my "favorited" comments on here are by software people with confident yet incorrect statements (usually by way of vastly underestimating complexity) about one of my domains of expertise.

I can't find it but one of the greatest show HN was a blog post about someone who was annoyed by his inconsistent shower temperature control. From memory, he spent a full weekend adjusting it, taking measurements, making graphs, and proposed "next steps" about prototyping better temperature control with microcontrollers and servo and pontificated about developing a product, of course controlled by software. He skipped the part where a bit of research leads you to the already common "thermostatic mixing valve".

I've seen a lot of friends and family members almost immediately get offered surgery for shoulder pain. It's just often the default for people that do surgeries for a living.

I also had a pretty painful shoulder issue at one point, where the pain just wasn't subsiding for months. I tried massages and acupuncture as I didn't want to do surgery, but it wasn't helping at all. The thing that fixed it for me was just really focusing on doing pull-ups. I couldn't do them at all when I started, so I began with dead hangs and scapular pull-ups, eventually progressing to regular pull-ups, and then training with a "grease-the-groove" method once I could get a few per set. I stopped the training schedule once I was getting in around 17 pull-ups per set, and now just do 6 sets of about 7-8 pullups 3x per week spaced throughout the day. I'll also do some shoulder mobility drills [1].

Whenever I get lazy about keeping up with them inevitably discomfort will start arising again, but it goes away once I get back to strengthening.

[1] https://www.youtube.com/watch?v=vP8YmmRMz6I

On the flip side, when I had rotator cuff issues, the surgeon recommended months of physiotherapy before resorting to the knife. And it worked. And by weight training regularly with a focus on correct shoulder movement, the pain stays away.

It really seems like if you, as a patient, go looking for a quick fix, that’s what you’ll be offered. And if you educate yourself a bit and then go t for the best fix for you, you usually get they.

What did you have exactly?

With calcifications, physio without the shockwave component definitely doesn't allow going back to the normal gym routine. It's just not enough.

Garden variety inflammation with some minor tearing, exacerbated by weakness/instability.

Strengthening with PT kept the joint stable enough to stop rubbing and allow the inflammation to clear.

And as long as I stick to a regular gym routine that includes rotator cuff work, it doesn’t recur (and did the few times I lapsed).

But absolutely, PT doesn’t fix everything. Bit for a lot of things, it’s worth trying - but it might also means a lifetime of altered habits to keep whatever injury/problem from recurring.

Physical therapy is very often under recommended in the US under the belief that insurance won’t cover it. They might. And, for anyone reading, you don’t even need a referral for the first 30 days in some states. Physical therapy is for more than just hip replacements and car accident trauma. Like regular therapy, a lot of “normal” people can benefit from it. It’s also not just stretching.

As somebody in the US who had to do 2 months of PT before I could even get an MRI of an injury, this is both surprising, and yet also not, to hear.

I broadly agree though; about a decade ago I had the standard office worker low back pain problems which cleared right up after doing squats multiple times a week. Of course a decade later I managed to blow out a disc at the gym, which I still work through as I write this today, but well worth the risk in the long run. Even with that long experience of strength training, the PT was worth it even if it didn’t fix my problem entirely. It added some variety and pointed out some details I had overlooked to improve my shoulder health.

Interesting. I’ve never not had some PT coverage. The copays kinda suck, but major surgery tends to add up as well, so…

> the surgeon recommended months of physiotherapy before resorting to the knife

In my limited experience, "If all you have is a hammer, everything looks like a nail", rings particularly true with medical professionals.

I had issues with my shoulder for years. Tried PT as well as pull/push-ups but doing that made the pain worse (if I wasn't doing any exercises involving the shoulder it was "fine")…

same here. I started doing yoga and rock climbing, and it stretched everything out, and strengthened all the muscles around it. I rarely have an issue now.

I lost train of thought :D

in the end I went with the surgery and now I'm in recovery. Sadly 4-5 years of trying lots of PT/streaching/pull-ups/push-ups/whatnot didn't help and only made things worse :(

Personally I've always appreciated talking to nurses I know.

The respectable ones know they aren't doctors, but they've seen a lot more recoveries and cases where minimal intervention was required. As some people have said some surgeons like to cut people up.

I have a story about this very issue.

I have hip impingement, I played sports and got a labral tear in one of my hips. My hip would get sore and painful after a lot of activity. I've seen a top surgeon in the US. After we just met, he looked at the MRI(yes there was a small labral tear there) and said he can have me on an operating table in 2 weeks.

I was shocked, because the recovery absolutely sucks. So, I got 2nd and 3rd opinion.

3rd opinion was a doc with 20+ years of experience. Asked me if I plan on going pro in any sports, I said no, he said the surgery is not worth it. I did some PT and barely have issues with that hip.

Then, Obama admin created a website to see what gifts($) physicians accept. The 1st surgeon had accepted six figures+ from stryker. The older doc? 0.

There is no money in PT for a surgeon. I would thread lightly with popular and young surgeons.

~2 years ago I used ChatGPT "deep research" to investigate a chronic sinus infection I'd been fighting for ~3 years. After seeing 3 GPs and 3 visits with an ENT, I fed all the observations I had into the AI. In particular, I couldn't get the ENT to explain why he visually saw, via a scope, evidence of allergic reaction in my sinuses, but then later concluded, after an allergy test, that it couldn't be treated via allergy medication. I asked this question a few times and he just never answered.

ChatGPT surfaced a NIH study that concluded that 20% of people have allergic reactions that are isolated to a body location, and that shoulder "skin prick" testing may not reveal. I asked him about that and he said "that's not how allergies work". Full stop. He was unwilling to even look at the study.

He prescribed a CPAP and regular nebulizer treatments. Side story: the CPAP place sent me a SMS message that I couldn't recognize was not a phishing attempt, and when I reached out to inquire who they were they never replied.

So I decided: Let me just try taking a second-gen allergy tablet every day and see what happens.

My sinus infections have gone away. Previously I was getting a major sinus infection at least quarterly. Maybe he's right that allergies don't work that way, but allergy tablets have absolutely solved my problem. Which I'm thankful for because I tried a CPAP for a solid month a few years ago and I just could not get used to it, and was sleeping like crap.

Daily allergy tablets are associated with huge increases in early onset Alzheimer’s. Glad you found something that works, but might be good to get some of the allergen injections :)

I believe it depends on which ones, the older gen or certain classes of antihistamines

Where are getting that from?

All I can find is about 1st gen antihistamines (i.e. Benadryl, which I doubt many people take daily, because of the drowsiness).

Even for those, evidence seems to be mixed at best. "Huge increases" seems like hyperbole.

Wait, what?? Now I'm getting in panic mode because I do take regularly anti-hystaminic tablets/pills (the newer ones, based on ebastine because they don't make me feel sleepy)

You don't seem to need to worry, second gen tablets seem to be fine: https://claude.ai/share/9c6eaaa5-e734-4267-b540-ddc0188daf6b

Posting a claude chat is not actually helpful. The chat doesnt't even cite any sources.

I think this post is a decent summary, the answer is a soft maybe: https://www.health.harvard.edu/mind-and-mood/should-i-worry-...

Second-gen tablets might increase dementia risk by a small-to-medium amount (there's almost certainly still a small degree of CNS activity, and we don't know what causes dementia in the first place), but researching it will be difficult. Dementia is hard to research because of how long it takes to develop, and it's poor coding within health data, and antihistamines are hard to research because they're not often prescribed and aren't available in the health data.

If it's a large effect, those factors wouldn't matter, but smaller risks are harder to detect and more sensitive to bias. If you want to minimise dementia risk, then reducing antihistamine use might be warranted, but you're probably better off addressing the risk factors we do know about: https://www.dementia.org.au/brain-health/risk-factors-develo...

>Posting a claude chat is not actually helpful. The chat doesnt't even cite any sources.

You didn't read it very closely, I posted it specifically BECAUSE it cites sources (14 of them by my count).

edit: I sit corrected, if I open it in Incognito mode the citations are removed. That's not very useful.

edit 2: Here is a gist with the citations: https://gist.github.com/linsomniac/6d2bdeb0f63cf504354b067e2...

Misinformation.

Only first-generation antihistamines with anticholinergic effects are associated with cognitive decline in elderly patients.

LMAO at how the two of you sound authoritative and knowledgeable, but neither linked to ANY studies (or at least personal anecdotes) to support your claims.

Yet here we are, warning each other about the dangers of LLM hallucinations. Humans "hallucinate" (provide random authoritative-looking information without anything to back it up) pretty often too.

Only first gen, 2nd gen does not have this issue anymore or it’s greatly reduced

That seems to be only for first generation, drowsy-making, tablets. Second gen formulas don't cross over the blood/brain barrier.

https://www.myalzteam.com/resources/zyrtec-and-alzheimers-me...

There IS one year-old finding that suddenly stopping Zyrtec after daily 3-month use may lead to nasty itching, and if that happens you can re-start and then taper off. https://www.fda.gov/drugs/drug-safety-communications/fda-req...

Zyrtec/cetirizine is a weird one. Everyone seems to agree that it is a second-generation antihistamine. The FDA seems to play along. But there is no particular shortage of anecdotal evidence of people who find it quite sedating (hi there!), there are some papers questioning its status [0], and the FAA puts it in a category with diphenhydramine, not with loratadine and fexofenadine [1].

[0] https://pmc.ncbi.nlm.nih.gov/articles/PMC1118461/

[1] https://www.faa.gov/ame_guide/media/AllergyAntihistamineImmu...

Ceterizine does cross the BBB to some extent, just less so than a lot of furst gen ones. So it can still have some hypnotic effects, sure.

But that's not the important difference here. The important difference is that ceterizine has negligible antimuscarinic effects, unlike DPH, meclizine, cyclizine et al. Antimuscarinics are nasty drugs, and the antimuscarinic activity(and sometimes other non-histaminergic activity as well) is why a lot of first generation antihistamines are so bad for your brain.

Ok, there's a lot to unpack here and you really had the deck stacked against you. First, lets go from the top, once a test says X, disproving that X is really hard. And that's not unique to the medical profession, it's inherent to all humans and we suck at revisiting or revising our decisions, much less at looking at the possibility to even reverse it.

Which moves us to the next two issues: liability and time. Any moment that you ask someone to revise a decision and specially with the stakes that the medical profession has that nobody has the time nor the inclination to open themselves for a mess.

Now, if you really want to be successful, you have to, before they even have a case with you, and specially before the diagnostic loop closes, to suggest the tests that the study has, since that has the biggest chances of looking at the right thing to look. Just be straight that you walked in with a theory. Doctors notice when they're being steered way faster than they notice when you're actually right. That's how you work with the systems that have a overworked mass trying their best.

>before they even have a case with you

My problem is that I needed information from 2 ENT visits to feed into ChatGPT to get that study. On the first visit he scoped my sinuses and immediately said "I can see evidence of allergic reaction, see those white bumps?". On the second visit I got an allergy stick test and it came out negative.

Those helped lead to that NIH study. It would have been very hard to have walked in with that study in hand.

I mean, for the second (third?) option specifically. You will notice that they will be more open to go outside of the standard of care if you have a working theory.

    > Let me just try taking a second-gen allergy tablet every day and see what happens.

Stupid question: Why did you wait three years before trying this tactic?

Not stupid. Because it wasn't on my radar that it was allergy related until the ENT mentioned allergies.

As a radiologist I have found Claude and ChatGPT to be absolutely terrible at MRI and I would not trust it one bit. It has its merits if you need to research stuff that is more text based, but radiological images is just something that they cannot interpret good enough (yet)

AI makes up for its poor reporting by enhancing the images.

Current Siemens MR software ‘Deep Resolve’ makes up the signal (adding about 50%), then makes up every second pixel, and then, for 3D sequences, makes up every second slice. It’s locking about 59% of the time off each sequences. And it’s really really good. I’m an MR tech.

Sorry? You use AI to hallucinate medical images and that's good?

It is not really the same as LLMs. I wouldn't call it AI. And I wouldn't say "makes up". I work in this field and this is certainly based also in part on my research.

‘Makes up’ is inaccurate for sure. But it’s not strictly true to call it acquired data either.

After years of collecting artifacts and errors, I have more and more respect for the tool.

But it’s jarring. I open a sequence, decrease the acquired resolution, add the AI and get a scan that’s quicker and higher resolution.

It’s an amazing time to be an MR tech.

It is amazing. It is the result of two decades of research in image reconstruction algorithms. The machine learning is part of it, but that it is sold as "AI" has probably more to do with marketing.

It certainly has a lot of marketing behind it.

https://marketing.webassets.siemens-healthineers.com/2861d15...

I haven't seen it marketed as "AI" by GE, Siemens or Philips. They usually gesture at "deep learning" or "compressed sensing".

No radiologist is buying "AI" scanners. Radiologists are probably among the most jaded of an audience about the word "AI" due to decades of undelivered promises. AI is synonymous with "worthless trash" to them, not to mention everyone says "AI" is going to put them out of work. lol

Super-resolution is certainly distinct from hallucinating - it just rearranged data that was already there to make it easier for the human eye to see - but should be used with care. I can easily imagine that an upscaling algorithm makes it so a certain defect is clearly not present, when the source image is ambiguous (which the radiologist would have noticed), and in reality the defect is present.

I would definitely be wary using the more advanced super resolution schemes. It took some work preventing it from drawing faces everywhere.

MRI is already a form of compressed sensing, I would much prefer statistical forms of super resolution to ones based on training data. Even if it is only trained on MRIs it will see some noise and plausibly expand it into whatever disease fits.

It's just DLSS/Frame Generation for MRI's.

Most upscaling and super-resolution techniques I’ve seen use various implementations of interpolation; typically nearest-neighbor approaches. Although I don’t work in the medical field and haven’t checked in on the research at least since ViTs overtook CNNs for other areas of computer vision.

but those are two different things. Of course something like Deep Resolve is great, as are modern model based reconstruction algorithms for CTs, but here we are talking about LLMs and their ability to interpret medical images, which has nothing to do with what you said.

Sure but claude and ChatGPT are not Siemens 'Deep resolve'.

It's like people who expect ChatGPT to be really good at chess because chess engines with super-human performance have been around for decades, so obviously the latest frontier LLM that took billions to train should find the task trivial.

Actually, I'm curious what ChatGPT 5.5's ELO is- I wouldn't be too surprised if it's 2000+ just from its basic understanding of chess principles from all the content it has digested.

Interestingly LLMs are extremely bad at chess position _images_. I have to imagine if you give it positions in text it'd be pretty great but when I was learning chess and pasting images of positions in for analysis I couldn't believe how wrong it was. I actually thought it was looking at the board in reverse but even when pointing out problems it seemed completely incapable of understanding what it was missing (of course... it doesn't really "understand" anything).

LLMs truly are marvels with text but anything spatial seems to really mess it up, somehow.

> I have to imagine if you give it positions in text it'd be pretty great

Not at all? LLMs are a terrible match for the kind of analysis a chess engine does (scaled deep search, deeply trained position evaluations). It's just not that kind of tool.

I suppose that's also a good point!

ChatGPT is completely unplayable at chess on its own. It's unable to keep track of the state of the chess position and therefore will make an illegal move within about 10-12 moves. I would put GPT-5.5's rating at 400, since it can't even make legal moves reliably.

I've tried to pay chess with GPT-5.5, even played it again tonight, allowing it to use `python-chess` to keep track of the state of the position and to get a list of legal moves at each turn, so that it was fair. I also gave it blindfold odds, again to make it a fair fight, but it was not even close. GPT still isn't better than maybe 1000 Elo, maybe 1200 tops. Even with what amounts to being able to see the position and also being unable to make an illegal move, GPT-5.5 hangs material left and right, doesn't make a plan, and got smoked even when I gave it blindfold odds, to the point it's boring for me to play even under those conditions. I'm not sure it's better than whatever the GPT model was that was out about 8 months ago. I also thought it might be somewhat better than a beginner due to reading chess books, but no, it's complete garbage at playing chess, not even average-level skill.

That is no one has bothered to finetune or RLVR GPT-5.5 on chess games. Even open-llama-3B can be finetuned to around 1700 Elo[1].

[1] https://arxiv.org/pdf/2501.17186

I would not trust AI on images. But I once had ChatGPT tell me that an MRI report was very likely to be incorrect based on the text, and offered a different diagnosis. Since it was semi insisting, I visited another doctor who made me do a retest. Long story short, ChatGPT was correct.

Again, this is just one single person's experience. So not worth much.

I think that much of the visual gap is because what to attend to in images is less structured. Anecdotally small qwen finetunes (ie less than 10B) take task accuracy from sub 30% on FMs to 90%. We have sold some of these for outcome based back office tasks.

I think we’ll see a lot of specialized VLMs that provide real value.

Anecdote but I gave Gemini Pro an image of an individual with Herpes Zoster which the doctor said was something else. Gemini gave the correct diagnosis which allowed for correct treatment and cure.

I don't understand why doctors don't prompt LLMs before saying wrong things. Is it ego?

I can understand for radiology because you need a specialized convolutional network, but for more knowledge based things...

“A man with a watch knows the time; a man with two watches is never sure.”

I imagine reasons for what you’re asking might include:

* Prompting an LLM is work, and they’re already overworked just doctoring—every conversation with a computer is a conversation you’re not having with a patient;

* They’re probably right more often than they’re wrong;

* “When you hear hooves, think horses, not zebras”: the 15th case today of strep throat is probably strep throat, regardless of today’s 15th falsely-confident LLM weighing-up;

* They tend to have spent many many years honing a clinical intuition that makes an examination, to some degree, hard to articulate fully to the LLM;

* Liability/overdiagnosis: All this stuff is probabilistic. Inevitably, there’s going to be a time when the LLM throws out something I thought unlikely that turns out to be right, and there will be other times when it’s wrong but now I have to document why. How many false leads do I need to chase per one true differential? Does this really compare favorably to seeking a second opinion from another human doctor?

* Not everything needs to make it into the record. Once it’s in the LLM, it’s discoverable and litigable and hackable and permanent;

* Medicine is practiced in very different ways in different contexts—even in this thread, one radiologist routinely orders ultrasounds for soft tissue shoulder problems, and the other medical-world person replying has never heard of such a thing—presumably both within US health care contexts. Some doctors hand out antibiotics like candy, others are more cautious with respect to resistance. What’s right can depend on the time, the place, the clinical setting—more than just the immediate patient-level facts at hand, in ways that become awkward or unwise to express explicitly.

And of course… who’s to say they don’t do LLM-assisted research, in cases where they think it might be helpful?

> I don't understand why doctors don't prompt LLMs before saying wrong things. Is it ego?

Either that or laziness I'd imagine. This isn't limited to LLMs. Expert digital assistant systems that you query have existed for a long time. A good physician will double check anything even slightly unexpected against one.

mate the other day chatGPT (enterprise) told me that the kernel 7.0.2 was older than 6.69

you cant trust these toys at all. that doesn't make the useless, just untrustworthy.

6.69 hasn't been released yet, to be fair.

It's fairly obvious he's referring to 6.6.69, and I'd expect an LLM to make that assumption as well, unless prompted to be a pedantic HN commenter.

This sounds fascinating. Can you provide any detail regarding the nature of the diagnosis or problem it identified?

That might be doctors new nightmare: people who second guess everything with AI. Previously it was "google your symptoms".

Indeed. I don’t even get what OP thinks they are getting out of this other than doubt.

Nightmare because they're always right and the A.I second guessing is always wrong, or because they just don't like to be second guessed?

Nightmare because users approach LLMs with the false confidence that they're always right, and present LLM outputs as fact to Doctors who have to waste time explaining that it's wrong most of the time. It hurts more than it helps.

> It hurts more than it helps

Hurts who ? Yes the doctor is super stressed and has maybe 10 minutes for you that's the actual problem, it's not like before LLMs they were super glad to sit there and answer all your questions.

Nightmare because the AI is just generating a random text that fits the question.

I feel the same when visiting a doctor in Canada. In that 2 minutes I have with they in one appointment per year I hear a standard text.

This is a very peculiar use of the word "random".

This is not a fair assessment of what AI is doing.

Studies have found that newer reasoning AIs are about as good at diagnosing illness from a written description of symptoms as doctors are.

Granted, it cannot actually examine a patient, so we're not replacing doctors anytime soon. But your view is obsolete.

https://www.science.org/doi/10.1126/science.adz4433

They are using the “gold standard for the evaluation of expert medical computing systems” not a proxy for what a doctor actually does when diagnosing someone.

It may have some utility after diagnosis, but this test doesn’t demonstrate utility for patients.

Not quite. An LLM generates text that would likely follow. The sky is… “blue”. A patient in pain with a bone protruding from their shin has a… “broken leg”.

The more training data, the more questions it can answer with a reasonable degree of probability of accuracy.

Throwing away a potentially useful analysis just because it’s probabilistic seems a bit like throwing the baby out with the bath water.

But for obvious cases like this, you don't need a second or first opinion.

This case is about handing a 3D imaging result to a text predictor and hoping for a valid second opinion.

Yes that’s my point. An LLM can clearly accurately predict obvious cases, so it’s reasonable to assume that it can predict less obvious cases with somewhat less accuracy.

The real question is where’s the cut-off point between accuracy and utility.

Remember: a second human opinion can also be wrong, and even a wrong opinion can still be useful (especially in medicine where differential diagnoses are a common practice - if the LLM gives you a useless opinion, you rule it out and move on).

I don’t think it’s particularly unreasonable to think that an LLM would have enough literature, or enough reasoning ability, to be able to generate a plausible interpretation of the data. A human can then review and say either “yeah that’s clearly not the case here” or “hmm, actually that could explain it, maybe we should order another test”.

Its a nightmare because it erodes trust. Doctors are not "always right" which is why "always get a second opinion" is codified in culture.

But AI's problem is that its completely full of shit, sometimes, and the people most qualified to evaluate whether its full of shit are the doctors, not the patients, but just like OP's original article, patients are left feeling like their second opinion from AI might be more trustworthy than their doctors opinion.

The notion that only doctors can verify is false! Doctors are better at verification but normal people can also verify. This is just empirically true.

Examples of things normal people can verify

- procedural errors that Claude can capture like some blatantly high dosage (grams instead of milligrams)

- outdated treatment plan, maybe there’s a credible new treatment plan that’s been used for years but the doctors were not updated

- literally being injected homeopathic drugs (takes no smart person to flag this)

Let’s stop talking as if doctors have a divine right here. And let’s accept some agency.

But those are obvious errors. What if the AI tells you to up your intake of X and it seems plausible? So you up your intake of X by taking some supplement, but upping the intake of X makes your body deplete more of Y and now you have a new or compounding problem.

A doctor might have never recommended upping X, because they would know what it does to your body. Or they might have suggested additional supplementation to avoid this.

The fact that LLMs are trained on all public knowledge is a huge red flag, because there are more wrong infos out there than right ones. Especially about health, diet, etc.

I was about to respond but your last statement implies fundamental misunderstanding of how LLMs work. I don’t think you even know about RLHF and you think good and bad ideas are spread in proportion to how much they are seen on the internet.

> But AI's problem is that its completely full of shit, sometimes

It's now quite unusual that it's "Completely full of shit". If it contradicts something your doctor said I don't see why you should feel ashamed to bring it up. Sure it complicates the doctor's work, having ignorant obedient patients must be more comfortable for the doctor, but the end result could be more accurate diagnosis.

There’s more than two options here. It was already difficult to deal with self diagnosis for doctors, now we have a machine that outputs recommendations, and does it with confidence whether it’s correct or not.

The same issues that were present with search-engine self diagnosis are still present with LLMs. If you provide Google with an incomplete list of symptoms and can’t interpret the information you find correctly, you will likely get an incorrect diagnosis. The same is true for LLM output.

There are quite a few disclaimers everywhere that soften confidence: "always ask a medical specialist", "I'm not a doctor", "this could have been this or that but really not sure", etc.

No one cares about this, especially those who believe the machine. It's just there for the provider to avoid responsibility.

Everyone on the internet loves to put doctors on a pedestal, but I think upwards of 30% of my doctor visits have been misdiagnosed.

There's a reason I ask AI about absolutely everything medical and there's a reason I keep extra quantities of prescription medications around for emergencies. I've saved my own ass a lot more times than the doctors have, thanks to good doctors not being available.

That works in your case because you likely already have an analytical mindset, can reliably discard or research information further. Same thing why AI is in an enabler for people having already some skill. But it can be very dangerous or misleading for people blindly believing all output.

The A.I is only gonna get better , and fast. Doctors should simply double check themselves by using A.I.

> It was already difficult to deal with self diagnosis for doctors

I get it. But the current system is also super difficult for the patient: getting time to ask questions, get clear answers, get the best possible diagnosis taking into account your history, symptoms etc and all that in 5-10 minute checkup when your doctor sees 50 patients a day and has very little time for you; this doesn't scale well. Patients run to A.I for a reason.

Well it was a nightmare for my mother's do-nothing GP surgery in the UK. She had several conditions which were being handled completely separately without central coordination, and her health was in serious decline. We went in with a list of 20 AI-generated questions based on her conditions and treatment (which I was able to screen as I have a bio postgrad, but not medical training), including those related to NICE guidelines and procedure, and, frankly the GP bricked it and ordered a load of new interventions. My mother started to get proper treatment.

I wouldn't trust AI to make a diagnosis, but I would absolutely trust it to notice where procedure hasn't been correctly followed, where a treatment is counter-indicated because someone has missed a line on a health record, or where there's a clear potential alternate diagnosis which has been missed for spurious reasons. Also, unfortunately, where doctors aren't doing a decent job - often because they're overworked or underfunded.

UK has probably the worst healthcare in the developed world. In part perhaps due to UK blindly accepting any kind of medical degree (doctors and nurses) from all over the globe. Yes, you heard that right, they verify the validity of the degree but there is no formal standardized exam to sit to practice in the UK.

Her nurses frequently couldn't speak English. I had to spell out her medical conditions letter by letter so that the nurse could input it onto the medical system. She was entering gibberish / wrong info until I stepped in, as I was watching the PAS out of interest.

fucking hell. dont they have language tests for foreign nurses? how the hell did she pass it ?

They effectively had tourist English. They're probably in through an agency so the financial incentive is to find an examiner who will give the right answer.

And say it's true because the AI said so.

Well I live in the nightmare that is the Dutch healthcare system [1]. There are many things that they will fix but they didn’t fix my sleep. A friend fixed my sleep. He is a doctor and prescribed me the right thing. The thing is, he shouldn’t have had to intervene. Without him I could have ended up poor and destitute as my sleep was wrecking me.

And yea, I already did all the standard things. CBT for insomnia helped somewhat. My insurance didn’t fully cover it either, unless I was willing to wait for 8 to 12 months.

And I recently met someone with slow moving metastatic cancer. Thanks to LLMs they will most likely live another 3 to 5 years extra since the Dutch conventional mainline treatment hasn’t been taken yet. But it is German doctors that helped them and Belgian doctors that pointed out in a second opinion that a lot more can be done.

LLMs have a part to play. The false positives are awful, but I have seen an average of 5 out of 10 care when things become too complicated.

Except for trauma treatment. The Dutch healthcare system is amazing once they diagnose classic PTSD.

So it’s definitely not all bad but the trust I had when I was younger has been eroded quite a bit and LLMs can meaningfully step in, in my case at least.

[1] I know there are worse systems. But from what I have heard there are clearly better systems nowadays. It has slipped a lot

Hey what did you do to fix your sleep? Help us all and maybe an llm will index your diagnosis (hi ChatGPT)

For me what helped is taking 7.5 mg of mirtazapine. At higher levels it's an anti-depressant but at lower levels it's an anti-histamine. It gets me drowsy. Together with 0.3 mg melatonin it knocks me out. I only take it 3 times per week max to not have habituation kick in.

So 3 days out of 7 days I have guaranteed good sleep. The other 4 days are a toss up. But an average of 5 days of good sleep is much better than 3.5 days out of 7 days.

Is the dutch healthcare system broadly against hypnotics? Culture (of the country or its medical system) can massively influence prescriptions or their lack thereof e.g. france is pretty famous for prescribing hypnotics very easily (and having a broad range of them), while the UK is generally a lot more reluctant.

yeah, I’m surprised Trazodone didn’t get mentioned as a very low dose

Never got mentioned yea

True, for example in Switzerland you can't really get melatonin, even if you do it costs an absurd amount (like 100 chf). Doctors seem to be really against it in Switzerland.

I find Dutch over the counter melatonin to be really good, just FYI [1].

[1] https://www.kruidvat.nl/shiepz-melatonine-time-release-0-1mg... - Shiepz Melatonine Time Release 0,1mg Tabletten

I personally take 0.3 mg, two hours before bed. I've done this for about 2 years now. It still works. I know, anecdata, but as you can tell the dose is low.

AFAIK mirtazapine shouldn't cause habituation the way actual "sleeping pills" or benzodiazepines do. That's one of the reasons it may be preferable as a sleeping aid, especially in the longer term.

Anecdotally, when I took mirtazapine for sleeping problems, it did sometimes seem to have a stronger effect the first time I took it after not using it for a while. After that the effect stayed stable. Overall it shouldn't cause habituation, and my doctor said as much.

Of course trust your doctor and not strangers on the internet, though.

> After that the effect stayed stable. Overall it shouldn't cause habituation, and my doctor said as much.

Yea so this is where it gets murky for me. I experience some habituation actually. But my actual doctor went like "wtf is this?" and she didn't really mentioned what she knows about it. So on this particular pill my friend is my doctor. Not an ideal situation. I mean, he is an actual doctor but for him to be my doctor in this is a bit fucked up. He knows a lot more about mirtazapine than my GP though since he read up on it.

> I experience some habituation actually.

I suppose it can be quite different for different people. I stopped using it because it often (not always) made me still feel tired and unfocused in the morning, something that apparently also doesn't happen to everyone.

> But my actual doctor went like "wtf is this?"

Different country, but where I live, prescribing low-dose mirtazapine for insomnia appears to be fairly common practice even though it's off-label. I've had it suggested or mentioned by three or four different doctors, including GPs. I also know several other people who have been prescribed it.

The doctors here seem to prefer low-dose mirtazapine as safer over typical CNS depressants such as benzodiazepines for insomnia nowadays, at least if the problem may be longer-term.

So it's not really something particularly weird. Of course different countries also have different medical cultures so I guess it's not surprising if it's not that common in other places.

Interesting. There recently was an article about how premenopausal and menopausal women are taking antihistamines with pepcid to help them sleep due to it going viral on tiktok.

https://www.thecut.com/article/antihistamines-pepcid-ac-peri...

> Then, a few months ago, Angela saw a social-media post from a woman who took daily anti-histamines (like Allegra, Claritin, or Zyrtec) plus Pepcid AC (a common antacid) for her perimenopause symptoms. Her results, as reported, sounded miraculous: no more brain fog, no more tossing and turning all night. Even her mood vastly improved.

Technically Pepcid is also an antihistamine, but h2. And h1-antihistamines have been used for sedation for a long time tho the effect is very much ymmv (first one I tried OTC would knock me out but not let me rest at all, not a keeper).

If you have sleep issue related to overthinking or racing mind, you may try fastsleep.app

Instead of music, long podcasts you are given something to imagine at a time interval.

Like if you hear "calm river", imagine that. If you hear "heavy rain over a tree", imagine that.

In short → Close your eyes, listen & imagine.

This seems like self promotion with no contribution to Hacker News. You're an account that has 2 karma, and only exists for less than a month [1]. Also, it's a bit of a weak comment in general.

[1] Account details when I wrote this down:

  user: greybox555
  created: 27 days ago
  karma: 2

I asked a clanker about symptoms I was having. (I'm not an idiot, I was already on my way to hospital, clanker was just to take my mind off symptoms during the drive.)

The clanker said I'd be fine, I just needed some rest and OTC meds.

The medical staff immediately turfed me to surgery because the same set of symptoms I told the clanker were enough to concern them that I needed emergency surgery.

Had I have listened to the clanker, I'd be dead because I did need emergency surgery. (Hell, I almost kicked the bucket because I waited for someone to wake up to give me a lift because.my insurance probably doesnt cover an ambulance ride.)

Very curious what made you run to the emergency first thing in the morning that an LLM understood as "just normal, take some OTC meds and wait".

Not OP but wanted to note that you're also likely to get different results based on the language you use (it'll respond differently to dialects of English, for example) and the RNG seed of the current session. These things are still probability engines and even if you know the exact symptoms, this might not be reproducible

It can be helpful in your understanding the choices made by asking questions and thus in reassurance, but it requires something most people lack: understanding you are likely wrong since you are just collecting information without understanding it.

Pretty much the like most manager these days, so I understand the frustration of the GPs.

This is obviously going to happen. But sub-par and sloppy doctors are a thing too. Medicine has been using semi-intelligent systems for years that were nevertheless found to improve outcomes.

We need studies that quantify error rates from each source type, then we need to account for the fact that the artificial type will keep improving.

The NYT did this profile a while back: "Ben Riley was already writing about the risks of chatbots when his dad started trusting A.I. over his doctor."

The dad was a retired neuroscientist who delayed cancer treatment against medical advice because he was certain he had been misdiagnosed based on his own research that he did with the help of A.I.

https://www.nytimes.com/2026/04/13/well/ai-chatbots-cancer.h...

There's a comment on the article from Ben Riley:

> I am very grateful to Teddy Rosenbluth for sharing my father's story with the world, her kindness and curiousity proved to be restorative in ways I didn't anticipate.

> The two words that everyone used to describe my dad: "intelligent" and "kind," and he was indeed both of those things. The sad irony here is that it was his human intelligence, combined with these strange new tools that purport to be a form of 'artificial' intelligence, that led to his ill-advised decision to forego the treatment he needed for his CLL. A doctor has already commented on this story with the observation that AI "confidently asserts erroneous conclusions," and we simply have no idea how often this is happening or the magnitude of the harm that results.

> Not a day goes by that I don't feel the pang of my father's absence. He might still be here if not for AI. I try not to think about that, but sometimes I can't help myself.

GPT-4o, which is what that article is most likely about, was an older low param count slop model which was known for abusing emojis and sycophancy. It does not really have any relevance to latest claude frontier models.

Your comment is akin to saying "Karen from facebook who is a human pushed essential oils and ivermectin as a cure to cancer. Now doctor Y is suggesting chemo. Both are humans, humans cannot be trusted!"

The context is very important: decades of a poorly-diagnosed chronic illness had left him deeply distrustful of the medical system.

This is the real root issue.

At 75 years old, he was stubborn. Is that reasonable ? Yes, perfectly. Could he have been right since the beginning ? Certainly. Did he deny evidence ? Yes.

Zero doubt that he was intelligent, everything points toward that direction, but that doesn't make a person less stubborn, because accepting the evidence, is also accepting that you were wrong if you initially postured yourself as adversarial instead of cooperative.

He would have read Wikipedia, scientific papers, etc, even without AI.

He did not want to be convinced. It works both ways:

https://www.foxnews.com/health/woman-says-chatgpt-saved-her-...

https://www.today.com/health/mom-chatgpt-diagnosis-pain-rcna...

Nonetheless, someone very smart, just didn't want to move from his position.

i mean, other smart people have famously delayed cancer treatment without needing poor guidance from LLMs! that's not at all new or unique to LLM chatbots

No, this flow is actually very good.

Like any domain, when you have questions or need a solution, you make research first, then you ask a specialist.

If you explain well the symptoms and context you can have proper advices and then decide on the path next:

    Case A) It looks benign and advices / information that you collected seem reasonable, then you go your way.

    Case B) You need second opinion of a specialist because the subject is too complex, or there are medications that you need approval.

Once you have challenged LLMs, and read about the topics over and over then you genuinely become really good at understanding it (especially if you triangulate over LLMs and ask them to challenge, you start to have genuine questions). No matter if the answer is right or wrong, you have elements. Maybe you missed the point, but you come prepared.

At home you have the time to assess the options, pros and cons of each approaches, the possible questions to ask and then challenge the doctor.

Shared decision-making is an actual evidence-based model of care, and patients who arrive understanding their condition and carrying specific questions tend to get better attention and better outcomes.

Some doctors get annoyed, because they have big ego and choose to be patronizing, but it is exactly their job to answer such questions.

    With LLMs, it's quite good, you get nuanced and rather useful answers.

    Before LLMs, no matter the topic you searched for, the answer was the same: "you have cancer / an [obviously deadly] rare disease"

The other problem, in many places:

    • The doctors are not affordable
    • They are too busy for you (< 15 minutes)
    • You may need to wait months to get an appointment
    • They are not good (country-side is an example, and sometimes even country-level)

+ you can have all of these factors together.

So, you have something deeply bothering you, your only appointment is in 4 months. It would be insane not to take the time to explore different solutions and not to come informed about the topic.

If you express your prompt properly and do not rely on imagery, you can absolutely have top-tier advices.

Agreed. This gets worse in cultures in which Doctors have no habit or haven't been trained that educating the patient is part of the job. Whenever I am back to my birth country, I specifically avoid doctors that are older than mid 30s, because they all have the same, terrible bed manner. They might be good at diagnosing and treating, but they never, ever explain anything, even when asked. Some even have "helpful pamphlets" to hand to the patient - anything to avoid explaining. It seems that in their view their job is not helping the patient, but completing a task - running a scan, performing a procedure, administering medicine etc. The human, that is subject of the task, is invisible.

It’s funny every profession deals with customers making their own guesses at diagnosis.

I told my mechanic the film flam is broken but he said it was the rim ram. He fixed it and we all went in with our lives.

But doctors insist on this God like status so it’s a “nightmare” when patients try to help themselves.

you are literally taking sleeping pills ..

I dunno man, it's one thing to have your car still be broken because you were wrong, it's a different thing poison yourself on the basis of having done your own research. The mechanic can laugh at you, it hits a doctor differently.

It's so much worse than some Google results: people see LLMs as a trusted friend who never talks back and never questions you, who is excellent at convincingly communicating their bs, reeling you in with "tell me more so I can really lock this down", continuing to fool you

A con artist, a fraud

People should've googled their symptoms and especially the prescriptions they got. It has always been a good practice. If[0] AI proves to be the new google then people should ask AI too.

[0]: IF.

Do you know how many life threatening illnesses I’ve diagnosed myself with by googling symptoms?

It's not just the second-guessing. It's the getting in the ballpark but striking out: explaining in detail why they are not correct. A little bit of patient knowledge requires a tremendous amount of doctor time to explain away the ignorance.

It's a 180 for me: While I believe doctors should explain diagnosis or treatment decisions when asked, I don't believe they should be taxed with explaining away alternatives. In my anecdotal 2nd- and 3rd-hand experience, doing that is taking at least a third of their time (on roughly 5% of the patients who think demanding answers will make things better) -- with zero improvement to diagnostic accuracy or treatment effectiveness. Doctors already consult with other doctors, and it makes no sense for them to have to consult with ignorant patients or treat their AI psychosis on top of their disease. It doesn't increase patient autonomy any more than adding a steering wheel for child car seats would help toddlers learn to drive.

Explaining diagnosis and treatment recommendations decisions inherently involves explaining away the alternatives. In this world where patients are ultimately responsible for our own care, explaining your rationale is a straightforward part of the job - otherwise there is nothing for patients to base their decisions on apart from how the options make them feel. If visits haven't been allotted enough time to get the job done, then that is something you need to take up with health plan bureaucrats rather than taking it out on patients.

I don’t understand the negative reactions. Medical care as it exists requires the doctor and patient to have their brains switched on. I’ve almost never had a problem where a doctor provides me with a diagnosis and I go about my day. Most of the times that I have, I’ve been confident about the problem and known what I needed. The doctor was a barrier to accessing care.

Dr. GPT is a good brainstorming tool. It helps synthesize information in a way that primary texts don’t. But it does force you to say “that doesn’t make sense”.

I do think that people saying “doctors don’t know the state of the art” have a weaker case. If you think about it in terms of token density during pretraining and how post training datasets are constructed, I think it would take us a very long time to adapt to any fundamental shifts. If we have forgotten how to cure scurvy, how many journal articles would it take before we adapt to a discovery?

> I do think that people saying “doctors don’t know the state of the art” have a weaker case.

This is kinda the case though. In Poland I met only one psychiatrist that knew about DSM-5. In this year. DSM-5 was a thing from 2013.

Doctors are people just as us, not every single of them is good.

Many DSM-5 diagnosis come into effect with the ICD-11, ICD-10 doesn't have a good deal of them, and that rollout is still fresh & ongoing.

It is kinda spooky, though, to have freshly minted doctors from a few years back whose school-knowledge will forever be "outdated and archaic" based on standards published before they were in school.

Some good advice I got: treat this as a generation shift, find younger and newer doctors who are familiar with the "modern" standards.

APA guidelines come with expiration dates [1]. 10 years is the maximum.

Churn is built in to the specialty. Read into that what you will.

[1]: https://www.apa.org/practice/guidelines/criteria?item=5

Why would you expect a Polish psychiatrist to understand the differences between different versions of a diagnostic manual used only in the US?

Because when I got ADHD diagnosis in Poland, one of the criteria for diagnosis was according to DSM-V :P

Oh I agree with you, it's just that I don't think LLMs are either. If you think of LLM knowledge, especially in scientific/engineering fields, as a lossy representation of the density of ideas, then you'd expect to see some weird behavior. I'm sure there is some sort of a temporal discounting and people thinking about this, but a naive NLL or Reverse-KL on medical literature would engrain some weird, wrong ideas.

I brought down prod system because I was too stupid and relied down on LLM advice, even double checking it.

I would not trust my health to LLMs, that is true.

"A 2026 Finnish study published in JAMA Internal Medicine that used magnetic resonance imaging (MRI) scans to look at patients’ shoulders found that 99% of Finnish adults over 40 have at least one rotator cuff abnormality." https://brainlenses.substack.com/p/abnormality

Incidental Rotator Cuff Abnormalities on Magnetic Resonance Imaging https://jamanetwork.com/journals/jamainternalmedicine/fullar...

I thought this was an interesting experiment and I repeated it with my own DICOM. Results are terrible. Claude has complete opposite diagnosis on my ACL, mensci and cartilage.

Claude: Primary finding: Complete ACL tear with the classic pivot-shift bone bruise signature (posterior lateral femoral condyle + anterior lateral tibial plateau edema) and large hemarthrosis. PCL, MCL, LCL, menisci, and cartilage all intact.

Radiologist: English translation of findings & conclusion: Mild joint effusion. No Baker's cyst. Post-ACL reconstruction with minor cyst formation in both the femoral and tibial bone tunnels. The ACL graft shows heterogeneous signal but no complete or recurrent rupture. PCL and collateral ligaments intact. The lateral meniscus appears abnormal, likely from prior partial meniscectomy, with significant cartilage loss (partly Grade 4) at the posterior lateral compartment, osteophyte formation, and reactive bone marrow edema. The medial meniscus shows diffuse signal change from prior repair but no recurrent tear (specifically no recurrent bucket-handle tear). Mild chondropathy with focal cartilage loss on the lateral side of the medial femoral condyle. Cyclops lesion present. No definite loose bodies.

Frustrating post. This gives rightful ammunition to the calls of "LLMs need to be avoided for anything medical". Even though the issue is that they're asking it to interpret images. They need to be avoided for that, but that doesn't say much about their medical accuracy outside of image interpretation.

It would already be a huge benefit to 90% of people worldwide if the very first part of most hospital visits would be outsourced to frontier-level LLMs. Yet this kind of misuse just gives the medical industry a stick to beat that idea into the ground.

Oh well, I'm sure there will be at least a few countries that will indeed embrace frontier models for initial diagnostic medical purposes. Maybe medical tourism destinations. But it's unfortunate for those who can't afford the trip.

I feel like I'm going nuts.

There are other commenters saying this is a good practice they've also done for other injuries. You are saying you are an actual radiologist and immediately clock the problems with its advice.

I have seen this pattern over and over again. Anytime someone is an actual expert at anything, AI output appears insufficient or incomplete or outright misleading. It is only when you do not know what the AI is being asked to do is it likely you will find the output helpful.

This is itself alarming to me, but no one else seems to find this to be quite damning for the AI services being offered, preferring instanced to be wowed by the convenience and speed at which they can be delivered unreviewed and unproven information.

Seems natural enough. There will always be complexity and nuance that is missed by an AI model or person - the world is just super detailed. The more expertise you have the more you will be aware of that nuance. That doesn't mean the model or person is not useful as a starting point.

> Anytime someone is an actual expert at anything, AI output appears insufficient or incomplete or outright misleading

Yes, this is exactly so. AI is able to confidently sound plausible enough to convince laypersons or anyone who isn't very familiar with the subject matter, which is a big part of the mass-appeal "magic" of ChatGPT and other similar tools. It's like having a know-it-all friend (who also makes shit up to bridge their own knowledge gaps).

In many non-advanced non-specialized situations, AI is right enough to be at best useful or at worst not harmful (usually landing in the middle somewhere).

But speaking for myself, in areas where I consider myself quite proficient, I can very easily spot the subtle inconsistencies and naive conclusions that AI responses provide, and I have to guide/steer/correct it a lot to get good results when the subject matter is complex enough.

> no one else seems to find this to be quite damning for the AI services being offered, preferring instanced to be wowed by the convenience and speed at which they can be delivered unreviewed and unproven information

"Be wowed by the convenience and speed", or merely "take advantage of the mere availability"? What most people find to be damning about expert advice is that they simply can't get it anywhere, at any cost that they can afford.

So if you want to do a surgery but you don’t see any surgeons around you ask a grocery butcher to have his way?

In certain circumstances, the answer is yes. If an airplane's pilots are incapacitated, do you simply give up and crash the plane because there are no other pilots on board? Or would you rather have someone on the ground try to coach a passenger into at least attempting to land the plane?

As long as that passenger didn’t have the fish.

Yes, I remember, I had lasagna.

That's an extreme edge case, which I don't think is in the context of the concerns in this thread.

The specific case doesn't matter--it's meant to make you think about the general question throughout this thread: when an expert isn't available, should non-experts use AI (or other tools) to help themselves? Sometimes the answer is yes because the potential benefits outweigh the potential harms (if any harms exist). But sometimes the answer is no because misleading/incorrect advice can cause a net harm.

But if the cases where AI use is a net positive are one in a million in medical situations? The argument is surely about the ratio, which many people here are arguing (from anecdote, would be interested to see a real study) is not in its favour, and the potential downsides - from both false positives and negatives - can be huge.

You can choose a) a calm, level-headed passenger who knows they aren't a pilot, or b) a calm, level-headed passenger who almost has their pilots license but has a medical condition that prevents them from admitting when they lack certain knowledge.

Who do you choose to be coached by an expert on the ground?

No thank you, I will ask Claude and then ask ChatGPT to challenge me, and do a couple of rounds like that.

The first: Has no clue about anything and therefore no useful knowledge and cannot challenge me

The second one: Is proven to willfully give wrong information and will make me do mistakes for sure.

The LLMs will do their best, even if imperfect, since they summarizes what appeared in books.

I prefer to be grounded on what Airbus / Boeing manuals, or on what pilots training book said, than two far more unreliable sources.

A passenger crashing the plane while trying to avoid a certain crash doesn’t make things any worse. An incompetent doctor trying to save you from certain death can make things so much worse. It’s all about weighing the best/worst outcome compared to where you are now.

I hate to break it to you but death is certain for everyone.

Properly emotionally processing this fact and your complete inability to do anything about it is called an "existential crisis" and if you haven't had one or several yet, you will.

I’m not sure what the “revelation” is? How is this related to what I said?

Putting that aside, your philosophy sounds shallow. Death is certain, but how long you have to live and the quality of that life are not predefined. An incompetent passenger-pilot trying to save you from a crash will at worst make no difference. But an incompetent doctor can teach you that death isn’t necessarily the worst outcome.

There are many healthy psychological ways to accept the certainty of eventual death. But the process is inevitably painful.

I think the different ways people accept death explains a lot of people's psychology, like how you can guess people's attachment styles or Freudian stage fixation. For instance, billionaires who pour all their money into anti-aging research clearly are not handling it well.

I thought LLMs are better than random weak sauce replies. Micro indeed.

People, especially in medical crises, are desperate for answers that they often can't get because their clinicians don't know. The illusion of an all-knowing guru who sounds like their doctor and tells them ANYTHING is extremely alluring. If you're waiting to hear back from a doctor about test results (which these days probably showed up on your online account the moment they were completed) can be agonizing.

Ok for pain in your shoulder it might not, but how about a woman with a lump in her breast waiting for the mammogram interpretation? How about someone trying to understand disturbing lab results? People are also often pushed these days to move through visits with doctors at a breakneck speed, but the AI will "hear you out" all day.

Part of this is a problem with the AI, part of it a problem with our healthcare systems, and part of it is simply human nature. If you think that OpenAI, Anthropic, Google and the rest weren't aware of this going in you must have very little faith in the intelligence of their members. It's not hard to imagine the future of LLM's should involve a hell of a lot of liability on the companies running it, but for now it's the Wild West.

> but how about

Whatever scenario you come up with my answer is the same.

As an adult I’d like to be able to choose what tools I use to learn about my condition regardless of how well it works or even if it’s likely to mislead me.

There’s risk in every aspect of life and we can’t baby proof everything.

>choose what tools I use to learn about my condition regardless of how well it works or even if it’s likely to mislead me.

Even if it "works" so poorly that you're not actually learning about your condition?

If it's helping you learn about your condition then sure I agree. The issue here is that's not really the case, it's giving you the illusion that you're learning about your condition while feeding you hallucinations and half-truths at best. A recent look at medical advice from these things showed they're no better than a coin flip.

So if you MUST have answers that are at most random guesses, I'd suggest saving a few bucks and asking a coin before flipping it.

The companies are 100% aware, yes, and so they did make quite a few changes over the years.

Current trend is that the models will try to explicitly steer you towards "asking better questions from your medical provider", rather than providing diagnoses. They do also evaluate whether something can actually be established rather than just listen and nod along. And so the "you must have very little faith in the intelligence of their members" goes right back against these failure mode ideas.

Now of course, given a sufficiently desperate person, they can probably torture anything they want to hear out of these models. But so can they out of actual people, so that's kind of a high bar. When you get to the point where people are willfully misreading a given piece of text, bets tend to be rather off.

No, people don't even go to a butcher, they do it themselves if they can. See the countless stories about farmers and their inventiveness. Example: https://www.youtube.com/watch?v=KKaJhQBusH8

LLM is not necessarily an expert system. Once there are expert systems for law, healthcare, accounting, governance…

https://en.wikipedia.org/wiki/Expert_system

Didn't they try that in the 80s and 90s but discover the real world is too variable for that to work?

> I have seen this pattern over and over again. Anytime someone is an actual expert at anything, AI output appears insufficient or incomplete or outright misleading.

AI isn't even the first instance of this phenomenon, news articles are like this as well.

https://en.wiktionary.org/wiki/Gell-Mann_Amnesia_effect

This is the root of AI psychosis. There’s a lot of unpack here, and I won’t go too deep because you can’t really have a discussion with affected folks because their fundamental basis is not evidence, it’s belief.

It is weirdly religious in a way, because if you were to present contrary evidence (e.g. experts in a field weighing in about how plausible sounding responses are bunk), you would only be told you don’t believe enough in the long term potential and capabilities.

Don’t get me wrong, I think we all agree capabilities will eventually improve (and farther-future capabilities could reasonably surpass experts), but really is unclear if the current transformer architectures with their probabilistic/hallucinatory outputs will plateau before they surpass current experts abilities in all promised fields.

I don’t think they will improve, there is too much incentive to poison the datasets going forward.

A lot of the models up to this point have been benefitted - like Google did - from essentially ‘pre SEO’ internet.

Now the same tools are being used to generate nigh infinite good sounding bullshit, which poisons the dataset in all sorts of hard to detect ways.

To add insult to injury, the human experts are also not as. Naive, and have many incentives to poison their own input in subtle ways too.

Human doctors use LLMs to diagnose too

OpenEvidence claims

    "More than 40% of U.S. physicians use it daily, and it handled around 20 million clinical consultations per month. Over 100 million Americans were treated by a doctor using it in 2025."

https://www.cnbc.com/2026/01/21/openevidence-chatgpt-for-doc...

This is a very misleading statement; most of those physicians are using LLMs to transcribe notes from visits and/or for billing purposes (e.g., proper billing codes).

OpenEvidence is specifically meant to help clinicians make evidence-based decisions in the diagnosis and treatment of patients, not note transcription.

It does both: https://www.openevidence.com/user-guide/visits-overview

The problems isnt LLMs per se, it is the shift to trusting the output of the machine coupled with a decline in verifying that the output is reasonable. It's basically what your teachers warned you about with wikipedia in eight grade except applied to all areas of life, including medicine. Dictation is already high-stakes and LLMs do not automatically reduce that risk.

Here is an example. My provider sent me this note. I'm quoting verbatim here from my MyChart record:

"Your liver enzymes are high, I would like to order acetaminophen containing medication like Tylenol, I would like to order liver ultrasound I placed ultrasound order in the system, make an appointment for radiology, I would like you to get hepatitis panel lab work done, obtain blood work order, please schedule a well visit to get it done"

When I queried it, this is what I got back. It was a dictation error. You could almost hear the panic in the message:

"Sorry for wrong message earlier, I was dictated message- so could not realize that it was written to take Tylenol type of medicines- I DO NOT RECOMMEND ACETAMINOPHEN CONTAINING MEDICINE - LIKE TYLENOL AND ALCOHOL DUE TO ELEVATED LIVER ENZYMES."

Again the problem is not dictation, or LLMs. The problem is humans ignoring their responsibility to check the output of a machine.

> Again the problem is not dictation, or LLMs. The problem is humans ignoring their responsibility to check the output of a machine.

100%. Also, management.

I wish someone would go ahead and coin an AI version of Amdahl's law that states the work speedup from AI is dependent on amount of unverified AI output used.

Iow, if you 1:1 verified everything, there would be no time savings.

Ergo, you get management saying (1) we demand time savings due to AI & (2) we demand you fully check anything you use AI for.

End result? People skip (2) to hit (1).

Then management burns anyone at the stake whenever inevitable mistakes happen.

But that’s trivially false. There is an entire category of work where it is hard to come up with an answer and easy to verify the answer, which means that if you verified everything there would still be a large time savings.

I would question whether that holds in the practical LLM automation space.

Can you think of any real life examples where an LLM is likely to be used?

I think in practice what you're saying is there are problems where there exist efficient deterministic verification methods, and I'm sure that's true.

But that's not the bulk of everyday work LLMs are being asked to do nowadays across industry.

You're questioning whether there are any interesting problems in the P v NP space? https://en.wikipedia.org/wiki/P_versus_NP_problem

But if you want to keep it in the realm of the everyday: you're asking if it is easier to write an email than to read it and check it covers what you wanted to say? Is it easier to search for something or to look at what's been found and say that it's what you were looking for?

Which is itself a problem as (in my partners evaluations as an optometrist), LLMs used for clinical notes has a bad habit of dropping clinically important information, and the biggest providers don’t give you a copy of the raw transcript or a recording

Which means she ends up spending just as much time as if she’d done it herself as it needs to be verified for accuracy every time…

Ignoring the fact that this number comes from a company press release, it doesn’t say anything about the number of doctors using it to diagnose, just that they use it.

If a physician uses Google to search for a dosage chart for some drug they rarely prescribe, you wouldn’t say they are using Google to diagnose the patient. You wouldn’t say that either if they used Google to search for the most recent studies on a topic.

To me this is like a good software engineer using AI.

The fact that they use it doesn't make what the result is any worse or less trustworthy - arguably it makes it better.

It only becomes a problem if they offload all of the thinking to AI.

I seriously doubt that data set poisoning will be a real limiter in model performance.

For one, if your website/book is poisoned, who is going to trust it for anything at all, much less for training models?

For two, all the major AI labs hire or contract for subject matter experts to create curated data sets, evaluate model performance, etc.

Unless they hire malicious experts, this will provide a growing, high quality data set that should drown out any poisoned pretraining data.

Pretty easy to display one thing to verified browsers (just latest few user-agents from the 10ish different mainstream browsers on the 3 main OSes) and another to anything else.

Yes AI scrapers can easily spoof user-agent, but they fall out of date as the browser updates.

Bit harder to catch them in tarpits and then serve nonsense to whoever ever triggered the tarpit.

>Yes AI scrapers can easily spoof user-agent, but they fall out of date as the browser updates.

It’s a hell of a lot easier for a company to ensure that its scrapers all report the latest user agent string than it is to get everyone and their mother to update their browsers in a timely fashion.

yeah but unless everyone is checking the version, if it's just a handful of websites checking it, they don't.

and browsers forcibly auto-update

I think you underestimate just how much money is being poured into LLM SEO at the moment. It's real quiet because they don't want to draw attention and countermeasures from the frontier labs, but this is getting huge investment, and they will have a monomaniac focus on juicing product results whereas the attention of the labs necessarily has to be spread out.

Who's doing llm seo right now? How does that work when you only gets feedback every few months when a new model is out?

I'm pretty sure the Optimization part is just ... not present at all.

This is how we get LLM summaries presenting something mentioned once by some nutjob in a reddit thread as bona fide FACT

Look at G2.com - they found their website is highly references by AIs and they are leaning into it hard.

Data curation is important and expensive and frontier labs can afford to do it right. Natural data isn't the limitation, we are already literally out of tokens. It doesn't matter how much you poison things it's not going to stop the progress train.

There's a post every other month where some dude who put nonsense information online celebrates because it actually ended up in some frontier models weights.

If it's easy enough that some randos can do it for fun, what do you think happens when there's commercial interest behind it?

Obviously companies are going try nudging AI towards recommending whatever they're selling. It's a logical extension of SEO - and that's a 100 billion USD industry.

Additionally, if I believed myself to be in some sort of spending - err - AI race, I'd try to poison the data sets of my competitors by putting crap out there for others to ingest.

It's not really a problem. We're out of natural tokens anyway. The future is synthetic verifiable traces (already the way we train coding agents).

> synthetic verifiable traces

What does it mean, Is it like when somebody used some coding agent to develop a feature and later input prompts and a resulting PR can be used for training by a presumption that final PR was a correct implementation of a prompt?

Yea it’s rejection sampling, so you have an agent, you take a verifiable problem (people use lots of different verification signals but say unit tests etc) and have the agent attempt it K times. You accept the trajectories (all context, tool use etc, the entire log) that are positively verified and use these as training examples.

The trick is to find the examples that are just in between too difficult and too easy for the existing agent, these have the strongest training signals

Do you have examples of such celebrations?

They already are, It has become a real problem in Reddit. Especially with the latest in pseudo-science crap like peptides.

There are so many better data sources that AI labs can use here that this argument really holds no water at all.

Peer reviewed journals, textbooks, in-house teams of experts, trusted news publications, etc.

The whole idea of scraping large swaths of the internet for training data has always been pretty dubious due to the variable data quality.

I mean, just look at the early Google models that told people to put glue in their pizza due to a joke in the training set. Garbage in, garbage out.

This is one of the first and most obvious problems all of these labs have run into, and countermeasures are only going to improve.

But they don’t, generally. Which is why it is a great argument, because it’s easy to falsify - and see it is what is actually happening.

Also, those other sources are getting buried in AI slop too.

The question is not whether it has happened or will continue to happen. Of course it will always be a problem to some extent.

Your original claim is that this will be enough of a problem to prevent models from improving in expert level knowledge. I completely disagree with this premise.

If the models fail to improve, it will likely be due to limitations in the transformer architecture rather than poisoned training data.

And even then, I doubt that the transformer is the best architecture we will ever come up with.

Clearly it doesn’t learn or think like a human does, since humans don’t need many gigabytes of text samples to learn to talk, so there is some room for improvement.

https://arstechnica.com/science/2025/01/its-remarkably-easy-...

Great, an article about Llama 2 from early 2025. That doesn’t at all invalidate what I said.

While completely ignoring the fundamental reason. Whoosh.

Not sure what point you’re trying to make.

That no one has actually solved the underlying problem at all, and the generation of the example LLM has no bearing on the nature of the fundamental problem.

You are totally misunderstanding my argument then. As I said, garbage in garbage out. Your article is just an example of that. It’s pretty obvious that if you train an LLM on bad data, you will get bad output.

What I’m saying is that the AI labs are handling this not by fixing the “garbage out” part, but by minimizing the “garbage in” part.

The fact that all you could come up with was research (not an actual example of poisoning a real training set) from 2025 kind of proves that this isn’t some kind of widespread, unsolvable problem like you seem to be claiming.

I literally just grabbed a random link. I’ve seen dozens of real life examples of poisoning.

The poisoning issue makes it so that no one can use the internet for training anymore, because more and more internet content is poisoned as a side effect - or poisoned intentionally. And .001% of poisoned data is enough to screw things up if included in the training data.

It’s also one reason why Google search results have been getting so much worse - it’s hard to not find a SEO page with subtly (or not so subtly) wrong AI slop on almost every topic you can imagine. Most folks won’t recognize it, but that’s what is going on if you know what to look for.

One other way of putting it is the ouroborus problem - more and more internet content is AI generated, because of people trying to game the system, and they are making it is indistinguishable from real content as possible to get by the AI detection algorithms.

Anyone trying to train on it just ends up eating the shit from another LLM, which poisons it.

Another name for it is ‘model collapse’, which also doesn’t have a known solution yet.

You’ve seen actual model poisoning? Or have you seen a model return the wrong answer due to what it saw in a search result? Or were they hallucinations perhaps? How do you know it’s due to poisoned training data?

And do you even realize how much data 0.001% of the training data for a frontier models is? They’re trained on 10s of trillions of tokens, meaning you’d need hundreds of millions of tokens of poisoned data.

Some of these problems you mention could become real barriers to models improvements, though there are plenty of countermeasures, such as by focusing on high quality data sources like I mentioned before.

We’ve already probably gotten as much as we’re ever going to get from simply scraping more and more unstructured text from the web as a way to improve model performance.

The type of training being done now is around tool use and solving specific types of problems better, which is the type of training data you simply don’t find lying around on the web.

No shit Sherlock, of course I’ve seen it. It was my job.

This is exhausting.

It’s like arguing crypto with someone who has never actually committed a line of code. Why do I even bother?

You’re expecting me to know your job? Give me a break.

I’m wondering the same thing. You keep talking of some grand poisoning problem but can’t point to any specific public information except an article saying that it’s possible. As if that was ever in doubt.

Guess we’ll just have to agree to disagree.

angry and ignorant! impressive

Human expertise is also improving all the time and not limited to just connecting dots. When AI seems to surpass a particular human, it's just because the human lacks broader knowledge and fails to investigate further.

An expert already knows they don't know everything. That was never the point. Critical thinking cannot be delegated to AI any more than it can be delegated to a book. There is nothing new going on here.

I was a very early adopter in my circles with AI and I shared it with many people. Strangely, I seem to be the most skeptical about AI in my circles as well, but because I was the gateway for a many folks, they want to come back and share their experiences with me.

And it's so much like listening to someone in a church congregation sharing their experiences with god. Clear and obvious gaps are hand-waved away exactly how you're describing.

Why is it psychosis and not lower standards?

While I can understand being skeptical of non-experts' claims that such answers are enough, I don't understand why you call it "psychosis" and not simply naivety or lack of expertise.

At the same time, the new so-called "models" haven't been pure transformer-based LLMs, but entire systems with tools (with access to the Internet), data storage, and the options to trigger additional instances for different tasks.

Because some people develop actual psychosis. They go down some rabbit hole with an LLM until the LLM makes them believe they invented new kind of physics that makes them go harassing experts who obviously try to ignore them because its all nonsense.

For me, what others said and literally showed with Claude Code, et al, and what I’ve been experiencing with it, clearly signal way lower standards. But this was true even before LLMs.

Reminds me of that clip of Travis Kalanick, sexual deviant and harasser of women, talking about "discovering new physics."

The Uber guy? Yeah that was a painful watch.

Graciously diagnosed for them by random unqualified people on the internet with an agenda, frequently before even any relevant interaction:

"Oh you like LLMs? You must in AI psychosis!"

Let's not pretend it is anything more than the run of the mill wet fart of a culture war label. It's quite literally the "TDS" of the anti-AI crowd.

That's really not the argument being made here, and you're panning it further by claiming this is staunchly anti-LLM.

The idea here is to signal that you can absolutely use LLMs to help you figure something out. But also, they're wrong a lot. So use your own brain too.

>This is the root of AI psychosis. There’s a lot of unpack here, and I won’t go too deep because you can’t really have a discussion with affected folks because their fundamental basis is not evidence, it’s belief. Treating it as if it is an intelligence is the problem.

The problem is that AI psychosis is fundamentally the belief that an LLM is "thinking" at all. Outputs are just believable word vomit which resembles factual information.

That presumes that we have a definition of "thinking" or that we know that anything is "thinking" when in fact neither is true.

The problem is real but I don't think positing a philosophical root is helpful

The claim that we are assigning human-like agency to a machine with none is simple and factual.

What's "thinking"? What's "agency"? What's "human-like agency"?

If "agency" is making decisions and performing corresponding actions in the real world, then LLMs most definitely LOOK LIKE they're making decisions (what's the next token? which tool to use? what's to say, in general? what idea to convey?) and performing actions (tool use). Can we tell whether they are ACTUALLY making decisions? Well, are the people around me "actually" making decisions? Or are they simply pushed around by circumstances and external forces?

Am I actually making decisions? Did I like DECIDE to write this comment? Maybe? I have no clue...

I think you're mildly obfuscating the issues at hand by diving too deeply into philosophical questions.

It's quite simple, the agency that the LLM appears to have is actually your own. Without a prompt an LLM does nothing. It has no thoughts between prompts about you or your problems.

You are implying definitions that don't seem to be mainstream; thinking is internally manipulating information to reason, infer, plan, solve problems, and form judgments or beliefs. Also -- "Without a prompt an LLM does nothing. It has no thoughts between prompts about you or your problems." it sounds like you paint this like it's something fundamental? It isn't. Nothing is stopping you from streaming information to an LLM and letting it process this information, this is precisely what people are trying to build.

The machines have no driving force to act in the world. That is fundamental for humans.

Twice in your comment you suggest things that you think that I believe, please do not do this.

“It sounds like you believe” is a question, inviting your clarification. I will continue doing that because it’s perfectly reasonable. Also “machines have no driving force to act in the world” is also a mysterious statement but because you reacted so badly to anyone questioning you I will just leave it at that

That is called a leading question and it is not "perfectly reasonable." Resisting your attempts at bad faith discussion is not "reacting badly." I agree though that we should cease discussion.

Yes, I'm diving a bit too deeply because I don't really know what "thinking" is and therefore I don't understand how we can so confidently say that LLMs don't think, even though they definitely LOOK like they're thinking. They even have a "Thinking" section in their responses! If I say that a rock doesn't think, it's pretty convincing: does a rock look like it's thinking? No — it doesn't even do anything! But an LLM does look like it's thinking, at least while generating a response. When it's "offline" it's just a bunch of "dead" bytes, sure.

So when it's not active, not responding to a prompt, it's of course not thinking. I'm pretty sure nobody actually questions this. Is your computer "thinking" when it's powered off? Can a piece of metal think? Probably not. So there are no thoughts between prompts, this seems obvious.

Thus, this is a question of "discrete time vs continuous time". LLMs "live" from prompt to prompt. Humans are alive continuously. In some sense, we're prompted by a lot of things all the time. As I'm writing this, I'm seeing stuff, I'm hearing stuff, I can feel various parts of my body, I'm thinking about my problems, my goals, other people's problems and goals, etc. When I'm in a sensory deprivation tank, my brain keeps "entertaining" me by "self-prompting", like a recurrent neural network (I guess it literally is a massive RNN).

So it seems like your definition of "thinking" hinges upon the LLMs being discrete-time and single-threaded (can't think about multiple things in parallel).

IMO a more interesting question is whether an LLM is thinking WHILE IT'S GENERATING A RESPONSE, while it's "alive".

We don't know what thinking is but pattern matching is definitely a big part of it. That's why people see Jesus on a piece of burnt toast.

I want to say I really appreciate that you are putting a lot of thought into this, you certainly have interesting concepts here. However I think it seems a bit far off from the discussion I'm trying to have, and I do not have the bandwidth to fully understand and charitably respond to your points.

The idea that humans have agency is supernatural thinking imo

A free will versus determinism argument doesn't really have a place here. Consider instead that humans factually have 'the illusion of agency.' The LLM does not even that have that. It cannot act on it's own, it has no ongoing drama or intention. It only reacts to prompts.

Wait, where are we assigning human-like agency in this case? Agency to me means the ability to do something by itself. Here the LLM is not doing anything, it is just responding with information to queries from people, that those people may then act on. (Which you can say about Google searches too, yet we don't ascribe agency to Google.)

Often times the words produced do have legitimate factual information though. It's less psychosis and more a confluence of well known human tendencies - salience bias, automation bias, etc.

The big problem is often times they don't as well. That's why we can't rely on them.

Same with humans? Doctors, scientists...if a tool has any error rate above zero its not reliable?

You're confusing the training method with the internal process. If I had you repeatedly attempt to learn how to make believable completions of partial documents about a given topic, you would eventually learn things about that topic and could use your knowledge to create more believable completions of documents about that topic.

LLMs do not learn. You put it out to pasture and create a new one. "Memory" in a session is essentially a context window party trick.

They do learn in context, and very sample efficiently. Continual learning is active area of research and we sort of already have something resembling it with persistent context. So yes they do learn.

I consider that to be the illusion of learning. You are not wrong, I think they may actually learn in the future though. But not today.

That’s strange to me, what would you define as learning?

To acquire new knowledge and build your understanding. They don’t understand so they can’t learn

Thank you for saying succinctly what I could not. If your consciousness and knowledge fundamentally does not change from your ongoing experience, then you are not learning. This is how the LLM currently functions.

You’re describing the problem of continual learning. As I said their “consciousness” for lack of a better term and knowledge does already change from ongoing experience in context which is another of saying for only a short window, today. They are ephemeral, sort of, but that’s a temporary limitation.

I think if your definition of consciousness can fit these things then you’re more open minded than I care to be. Consciousness isn’t really guessing the next thing to say- it’s hard to say what it is, obviously, but blindly feeling forwards with each new conversation doesn’t seem like consciousness or learning to me.

We aren't talking about consciousness, we're talking about learning.

> Consciousness isn’t really guessing the next thing to say-

I don't know what consciousness is either and these debates are a dumpster fire when they happen, but it sounds like you're pulling forward this "LLMs are just predicting the next token" (true by construction) implies that they can't learn or reason or be conscious (2/3 are wrong, the last one isn't falsifiable without a useful definition).

Yes, I think we simply disagree. I think you know what LLMs are based on our other thread and if you think something important happens when you get a large enough context vector I don’t think there’s much I can say to change your mind. It seems unlikely to me!

“They don’t understand” is a strong statement, maybe true but depends on what you mean by understand. What is your definition of this? I can’t think of a meaningful definition of “understand” that doesn’t apply to LLMs

We’re in all the same threads lately!

The LLM itself doesn't, but agents can research, compare, add to their memory, and use that to narrow the results down to a probabilistically higher set of outputs; I have used an LLM for my own MRI results and it was nearly spot-on, verified by a subsequent visit to a specialist. YMMV as they say. But I do believe we are entering the era where LLMs are considering past interactions and long context windows to inform it of personal preferences and history in order to output more accurate results.

They already learned. A lot or basically everything evern written and available digital.

And context window work very well. You can 'teach' an llm a new programming lanuage and other things through it.

They learn during training, which is what we're talking about.

>which is what we're talking about.

You are anyway, I don't see anyone up the chain saying that.

believable != true

A very important callout. It's the crux of the whole thing really. Humans are easily susceptible to deception by statements that are structured to be believable.

Sure. But that's not the subject.

Please stop trying to police what the subject is to suit your own arguments.

This is what Stephen Colbert called "truthiness". People want to believe what they feel is true even if it is directly contradicted by evidence.

https://en.wikipedia.org/wiki/Truthiness

> There’s a lot of unpack here, and I won’t go too deep because you can’t really have a discussion with affected folks

Do you think it is any more possible to have a proper discussion with someone who preemptively paints the other person as mentally ill? Or someone who preemptively victimizes themselves?

Cause I don't think these are the hallmarks of an honest discussion. See also the entire past decade of political discourse.

Like, consider this:

> It is weirdly religious in a way, because if you were to present contrary evidence (e.g. experts in a field weighing in about how plausible sounding responses are bunk), you would only be told you don’t believe enough in the long term potential and capabilities.

A trivial counter to this is that you can just be an expert at something (e.g. your own work), use the damn thing yourself (professionally), and evaluate the outcomes for yourself. Then maybe remark "LLM good".

Now you come and remark "LLM bad", and point at random "evidence", either of outright other workloads, or even the one at hand: you're asking someone to reject the reality they've already experienced, entirely based on the assumption that they're "merely religious" or "in psychosis". You tell me if that's any more epistemically rigorous and sensible than their story.

I _believe_ the term "AI Psychosis" is a "thought-terminating cliché" that readily puts you in a position to disarm any criticism to your point of view, which, if you're aware of it or not, it's a belief in and of itself. I'm more willing to bet your can't have discussions because you're trying to have debates.

But on your actual point, I don't think AI needs to "surpass current experts abilities in all promised fields" as a marker of its ability. The immediate gains has already shown some remarkable promise and more LLMs should have had safeguards around mental health up front. If I were to put it on a scale, I would say it is net positive long term with a strong negative spike up front which was somewhat preventable. But who knows, maybe is just have "AI Psychosis" and you can easily dismiss me.

I see your argument, but it's not exactly news that an expert found a flaw in a popular tool. You could say the same about Wikipedia--experts have tons of issues with it, but Wikipedia still provides value to non-experts. The most likely alternative to Wikipedia for non-experts is simply not trying to learn anything new.

Similarly with LLMs, you can't just write them off entirely because they sometimes provide misleading or incorrect advice. The positive utility maximizing view is to learn when you need to call in an expert. I recently moved in to a new house and have used Claude extensively to figure out basic things (e.g., adjusting the garage door height, how to mount a TV). However, when the HVAC suddenly stopped working, I gave Claude a shot for an hour and tried some non-destructive fixes, but then realized I had to call in an HVAC expert.

The free alternative to Wikipedia is the library, not “don’t learn anything new ever”.

I find Claude is surprisingly similar to a confident but incorrect coworker, with the benefit that Claude will reevaluate when I correct it.

Claude will do everything to retain you as a user, because that's one of their most important metrics.

Excellent point my colleague has the exact opposite incentive.

I used the phrase "most likely alternative" intentionally. The library is where people should go to get answers in a world without Wikipedia, but the vast majority of people won't. So in practice, most non-experts either learn from Wikipedia or don't try to learn anything at all.

Sure, if we’re going to go that broad. People are already leaning heavily towards learning nothing instead of using Wikipedia.

I guess to me it has to be comparable to be an alternative.

Like, I don’t consider doomscrolling x an alternative to reading Wikipedia but I might consider it an alternative to CNN, even though they’re all technically and very broadly activities that I could use to inform myself.

In that same way I don’t consider the multitude of ways I could use my free will necessarily alternatives to each other even though they technically are. It kinda sucks but going that broad feels to me like it breaks the concept of alternative and makes it kind of meaningless.

I get what you're saying, but I'm not deciding what should and shouldn't count as an alternative to X. I'm trying to answer the counterfactual: how do people behave in an alternative world without Wikipedia but otherwise identical to our world?

I mean, technically… I’ve lived in that world. You just go back 25 years. We had the Dewey decimal system (card catalog) and the library, hard copy encyclopedias. You could also ask someone else.

Then we had computerized encyclopedias and search engines that searched the library.

I mean, you had to work for the knowledge. Sometimes you didn’t know something and no one else knew either, so you had to wait until you got a chance to find out, but you would think about it and sometimes you would be right when you found a reference source.

I’ll also note, Wikipedia is a secondary source. It is not a reliable source of truth. It is more like the ‘ask someone else’ alternative than anything else, it’s just ‘someone else’ is a person on the internet who writes Wikipedia articles.

Slightly OT Nitpick: in regard to experts and Wikipedia, when doing a neuroscience-adjacent MSc, experts in the field actually directed me to Wikipedia as an excellent source for high-level neuroanatomy, including recent research, so I'm not sure your blanket description about experts and Wikipedia is correct.

You 100% can write them off entirely and go about your business as you previously had done. Ignoring the errors, it is very debatable whether there are even productivity gains beyond: human programmer or whatever is excited and cranked up to unsustainable degrees of activity and thinking to 'keep up' with what he thinks is an AI doing the work.

I'm seeing this fairly often and when it isn't garbage it's a capable person who has gotten inspired by their 'collaboration' in which the busywork is being done by a machine, but they're doing so much directing and correcting that it's not unlike what would happen if they got heavy into meth and went on a tear.

You absolutely can write them off entirely and decide for yourself what your comfort level of human-killing speed-freakism you want to pursue in your productivity. There's a long history of humans managing astonishing levels of productivity through self-destructive means. This is not even cheaper, once the 'first one's free' wears off: it's just a novel method of getting humans to burn themselves harder in the belief that they have a magic feather.

The ones who're really throwing themselves into the situation are the ones who'll burn out, but who aren't setting themselves up for atrophy and learned helplessness. Anyone who believes the technology lets them be a lazy manager just getting paid, is in for an unpleasant discovery.

On the flip side of this problem, novel best practices lag the medical standard of care, other human failures like corruption and competing priorities notwithstanding.

For example, we had to advocate for certain practices during the birth of our first child that became routine during our second several years later.

So, neither side is guaranteed correct, doctor or citizen researcher (which did not include LLMs in my case, for the record). The truest answer is also the most useless one, applicable to all fields: it depends.

The real question is: if you embrace being a layman, whom do you trust more: LLMs/the internet or experts, like doctors? I think the answer is pretty clearly experts.

TFA doesn’t actually state where the bit about shockwave therapy came from and it wasn’t the main point of the article. The concern was about being given useless therapies. The homeopathic analgesic is concerning, at least to me.

I.e. nothing this radiologist said was related to the LLM’s advice.

No, not anytime someone is an actual expert at anything, AI output appears insufficient. That is why experts in various fields use AI.

Then to say "Aha, but all of that is AI psychosis" makes obviously no sense: Why would we trust experts when they offer critique but not when they say "this is helpful"?

Overall: People are not insane. AI makes mistakes and, often, fails completely. AI also helps them do things better, quicker, increasingly so. The jaggedness of AI is confusing and real.

How many times have you seen an expert go "yeah these results are good consistently enough for a non expert to trust them without expert assistance"?

There is a huge difference between having a chance of a good result, which can be useful for experts able to filter out the bullshit, and consistent success. I would generate code as a helper, I would never allow a guy from marketing to merge unreviewed AI code.

That's what I would like to call job security. When you know how to read what is wrong, you can easily catch the mistakes and correct it. AI gets you there faster by doing a lot of things right and you correct the mistakes.

I had a realization recently that the problem with "AI isn't consistently good enough" is that experience is probably not sufficiently distinguishable from the experience most non-experts have with computer systems all the time.

As an industry we've been promising people for decades that if they put all their data into our special softwares they can get all sorts of information back out that will make life easier for them, reveal new insights and otherwise improve their understanding. But the unspoken caveat has always been that you have to put the right data into the right places, in the right format, in the right way and then you have to ask the right questions, in the right syntax, with the right tools. And if you get any one of those parts wrong, you're not going to get the right answers (or possibly even any answer at all). How many people have had their excel worksheet that they (or someone else they asked/employed) built for some task that has been working fine for the last year suddenly stop working or start throwing out nonsense numbers because some input changed? Or how many people have experienced their system seemingly throw out meaningless garbage because daylight savings changed right at the moment the report was being run? Or spent months operating on wrong data because the person who wrote the query misplaced a parenthesis and the query was searching for "(foo AND bar) OR baz" and not "foo AND (bar OR baz)". For most people, the computer and the programs they use to do their jobs are magical black boxes that most of the time produce mostly the right answers and sometimes get things very very wrong with no indication of what has changed. Which is effectively the same experience they will have with an AI, but now instead of needing to figure out some arcane excel pivot table and VBA script, they can just dump some raw data and a "natural language" question into the AI.

And that's not counting the fact that their experience with looking information up online is about the same as well. How many absolutely confident wrong takes have you encountered online for things you're an expert in? How many of those wrong takes have come straight from supposedly trustworthy sources like news companies or even other people in the field?

For most people, using a computer has always come with the asterisk that you should always be aware that the source you're reading could be very wrong, that the output is only correct assuming all the inputs and all the parts processing that input are also correct and that everything you do should be accompanied by vetting by experts, whether those experts were software developers or domain experts. For most people the only thing that's changed with AI is that it's a one stop shop for their "probably directionally right, almost certainly wrong in the details" access to the digital oracles.

> How many times have you seen an expert go "yeah these results are good consistently enough for a non expert to trust them without expert assistance"?

But see now we are talking about something else entirely than the claim that I found dubious, which was: "Anytime someone is an actual expert at anything, AI output appears insufficient or incomplete or outright misleading."

Consistently good enough !== anytime insufficient

I’ve never seen an expert use AI in their field beyond the initial ‘oh interesting’ stage.

This is natural and even logically expected. It's just Gell-Mann amnesia in action. The world has more people spouting on things than it has people knowledgeable in said things.

Apply that to the Internet at large, and realize where LLMs got their training. They're basically ConfidentlyIncorrect personified.

Yes. The PM’s “with AI I know enough to be dangerous, haha” means “I’m actually dangerous and I don’t realize”

We're past the point of Gell-Mann amnesia. This is full blown Gell-Mann psychosis.

Your instinct is correct, and in a lot of cases it's true. However, I've heard from enough doctors by now (a cardiologist, psychiatrist, and epidemiologist/former physician) that they use medical LLMs and find them extremely helpful, mostly as a way to either bring up knowledge they'd forgotten about or as a way to learn something new and then verify it. I'm extremely skeptical about LLMs in general and the connection to Gell-Mann Amnesia is apt, but I wouldn't necessarily write them off completely like that. There are experts using the models that find them genuinely helpful in their field.

Probably this is the point, and it's a point that has been brought up a lot of times in the past, maybe less in recent times: you need to know the things you're applying an LLM to. In this way, you can keep the good outputs while having the expertise to discard the bad ones.

I may be missing something, but I think it's unclear that the parent poster here is necessarily actually contradicting anything the AI said. It may depend on the exact information the OP wrote to Claude and GPT. The full transcripts would be needed. (Though there is definitely a separate point that a doctor would generally better know all the right questions to ask, while current LLMs may be making certain assumptions.)

The LLM may have, from its "perspective", implicitly thought the OP was telling it that he had strong reason to believe there was no calcification and was not considering the bigger picture of possibly receiving an incomplete/poor assessment from the medical staff. In fact, the issue here may be the LLM overly trusting doctors vs. trusting its own expertise.

The question is how far is AI off compared to the professional that we have access to. World best experts are not accessible to most of us. :(

Totally agree. I'm a scientist, and like most scientists I have some specialized skills that most of my colleages don't. AI has empowered them to learn and build things that they might have otherwise needed me for. But there have been quite a few cases where it led them very far down a wrong path. This has started happening way more often in the last few months.*

We've known since the beginning that AIs confidently say incorrect things. But now that they can speak confidently about very complex topics, and mostly say correct things, we are letting our guard down and lots of subtle falsehoods are slipping through.

*In one case, I was able to put things back on track because the AI suggested my colleague talk to me; somehow it figured out we were co-workers.

>very far down the wrong path.

Absolutely agree. Have seen this first hand

Right but hallucination rates have been consistently decreasing every model iteration. It's about error rates. As also a fellow scientist, I also will mess something up. Humans have an error rate. Once that error rate is low enough, it doesn't matter that it's > 0, it matters that it's low enough to be trustworthy and useful. Coding agents of 2024-25 had error rates too large; you couldn't meaningfully vibe code anything and needed a ton of oversight. It's still true but FAR less so, and this is after like a year of iteration.

> This is itself alarming to me, but no one else seems to find this to be quite damning for the AI services being offered, preferring instanced to be wowed by the convenience and speed at which they can be delivered unreviewed and unproven information.

Welcome to the club? This new awareness you've found over the true quality of LLM based GenAI output has been what "all the haters" have been mad about for-ever. That the output of LLMs are clearly defective, and merely have found a cute trick towards making humans think they're less defective than they are actually measured to be.

And the corresponding anger and frustration to push the risks of genai output out onto others, while also aggressively pushing it as a feature you should be using already. You're behind don't you know, and whatever other lie I have to tell to trick you into enough FOMO to pay me 200USD/mo so I can sell FOSS back to you.

An LLM can only output the mean next likely token, and then add a bunch of extra noise on top of that so it feels interesting and not repetitive. None of this is new, the problem is, 50% of humans are below the mean, but have no idea. So when an LLM tells them some lie: well, it sounds so helpful! It's impossible for someone who sounds this helpful to lie to me, liars never sound confident! It must be PERFECT! I'm gonna tell everyone how perfect it is. so the bottom 0-33% think LLMs are fantastic tools that make nearly 0 mistakes in comparison to the bottom 33%. 33-66%-ish aren't sure, some times it's great, but it will make that random mistake sometimes, but I can catch most (or all of them depending on ego). and the 66%+ are angry about how many people are getting tricked by something so obviously low quality, or are lucky enough to not have to care.

An LLM can only output the mean next likely token, and then add a bunch of extra noise on top of that so it feels interesting and not repetitive.

So when an LLM was asked to analyze the unit distance conjecture, it just spat out a bunch of average-or-random tokens that coincidentally happened to correspond to a valid proof that had eluded humans for decades?

> So when an LLM was asked to analyze the unit distance conjecture, it just spat out a bunch of average-or-random tokens that coincidentally happened to correspond to a valid proof that had eluded humans for decades?

yes

https://en.wikipedia.org/wiki/Texas_sharpshooter_fallacy

How many problems and/or times did it make up completely random bullshit with no basis in reality? Random noise looks really cool or impressive when it's right, but if and only if, you're willing to ignore all the times it was wrong.

I'm not.

It's like reading news articles. Seems reasonable until you read an article about something you know, then you see how wrong they can be.

You're not. This site was also bullish on using LLMs as therapists, which defeats the very point of them, and reflects a lack of knowledge on what exactly therapists do for people.

More on topic: if the article's author arrived at a definitively negative result would this have shown up on HN?

You shouldn’t expect frontier models to work on medical imaging. There is much more that goes into building a medical imaging product. First and foremost is data. Medical imaging datasets are not prevalent one the public internet at the scale necessary to have good performance on medical imaging tasks especially MRI. Also the labels are super noisy.

This is completely different than asking for general medical reasoning which is more derived from papers, public standards and textbooks.

Text exists at the right scale but images don’t.

> Anytime someone is an actual expert at anything, AI output appears insufficient or incomplete or outright misleading.

The term for when the press "gets it wrong" is Gell-Mann Amnesia (https://en.wiktionary.org/wiki/Gell-Mann_Amnesia_effect).

In that case, when you have personal knowledge of the facts, or know the specific domain area, you can see where the reporter mixed things up.

AI is no different, it's just a bunch of matrix math substituting for "the reporter" regurgitating what it was previously told. So the Gell-Mann Amnesia effect would apply just the same. If you have domain knowledge, you immediately see where the AI got it wrong. When you do not have domain knowledge, you have less chance of seeing where the AI was wrong.

> I have seen this pattern over and over again. Anytime someone is an actual expert at anything, AI output appears insufficient or incomplete or outright misleading. It is only when you do not know what the AI is being asked to do is it likely you will find the output helpful.

I always recommend people try asking LLMs a lot of questions on something they know first. Programmers should start by asking LLMs to work on a codebase they’re familiar with first.

You’re overstating the problem, though. Even for an expert the LLM will get a lot of things right and can be helpful under a watchful eye.

The real problem is knowing how to identify when it’s on the right track and when you need to correct it, because both cases are presented with the same tone and confidence.

An expert can better identify when the LLM output doesn’t sound plausible. Someone unfamiliar with the topic will think everything it says looks correct.

AI is an expert in everything you are not.

>AI output appears insufficient or incomplete or outright misleading

It has been like this since the rise of "AI". The only people enthusiastic about it are usually the ones hoping to make a profit in one way or another.

what is happening is that the gap between what the experts and AI know is getting smaller each year. this year sure radiologists are mocking AI's ability to interpret MRI results, but they are a lot better at that this year than last. In five years perhaps radiologists will truly appreciate AI, but I am not holding my breath because radiologists are notoriously slow to adapt to changes in medical science compared to other specialists like anesthesiologists or surgeons

I came here to post this as my experience. AI is magical when I apply it to something I know nothing about. It far exceeds my expectations every single time. I know nothing, but here is a report with animated graphics explaining exactly what I asked it to explain!

In fields where I'm an expert... it makes a lot of silly mistakes that are annoying and I feel like they would just cascade if I didn't correct them early. (I still think it's a net win, but... I watch it and it watches me, and we both do better work. I'd even apply the "magical" adjective when it does stuff I hate but know how to do, like edit Helm charts. What would normally be 20 minutes of me griping about YAML indentation is just a correct diff in seconds. I'll take it!)

So with that in mind, I tend to distrust output that I can't verify. If a doctor was recommending surgery and I thought the plan was too aggressive, I'd get a second opinion. I don't expect Claude Code to have much medical diagnostic ability, as that is really not what the model is trained for, and I know how it performs on work that it's trained and fine-tuned for. That is not to say the output is wrong and that it can't have diagnostic value, just that I personally wouldn't feel safe trusting it. Wrap up the same model with fine-tuning in the domain and a harness that reminds Claude to do a lot of sanity checks, perhaps with a human in the loop to guide it back onto the rails when it gets hyperfixated on something that doesn't matter? That could very much be a useful AI product.

I am personally very excited by the development of a medical AI-harness that would

1. operates against a well-defined DB of medical studies

2. intakes my basic demographics, vital signs and medical history

3. quantify uncertainty wrt a specific diagnostic (it's own or one received by a healthcare professional)

4. specify medical tests that can be executed, and how they can be obtained

5. provide scripts for interacting with healthcare professionals/functionaries

I would imagine that the thing would need distinct operating modes:

1. A diagnosis generator

2. A diagnosis evaluator/critiquer

3. A patient educator

I dunno. I know a lot of software engineering experts. AI isn't always right, but neither are the people, and it's getting better and better.

Software is one domain where it excels because of structured training data and simulation environments, so I'm well aware it's better here than other areas.

Still there's somewhere balanced between saying every time it's "insufficient or incomplete or outright misleading" and "just trust AI". AI's a useful source of information/reasoning/research, but know you need to validate it's answers for important decisions.

This is true in broader contexts too. Bunch of experts can't agree on something fundamental which is hard to prove/ disprove, and they have strong opinions on the topic.

AI is much worse.

> I have seen this pattern over and over again. Anytime someone is an actual expert at anything, AI output appears insufficient or incomplete or outright misleading

AI assistant are industrializing the Gell-Mann amnesia effect.

>I have seen this pattern over and over again. Anytime someone is an actual expert at anything, AI output appears insufficient or incomplete or outright misleading

media is awash at the moment with experts chiming in to support AI, saying their fields are being revolutionized, etc.

it seems unsurprising to me that the laymen opinion would follow the loudest media trumpets.

Well that's part of the problem. AI is not accountable - if you take its advice and hurt yourself, who is responsible?

A real doctor is accountable.

They might both "know" a lot of things but implicitly the party who is accountable is going to be more trustworthy.

And I don't see that going away until AI companies must be licensed for application x and can lose their license / be sued if engaging in malpractice.

Last week I went to a highly-specialized tertiary clinic about further treatment for a rare medical condition that I was diagnosed and treated for as a child. The two very specialized doctors I met there confirmed a diagnostic mistake that a specialist had made ten years ago. The only reason I pursued a second opinion, ten years later, was because Google Gemini had explained to me that the specialist ten years ago had performed the wrong type of test for my condition.

Do these LLMs make mistakes? They sure do, I see it all the time. But they can also help people make breakthroughs.

And this isn't the only time that Gemini has helped me diagnose long-term health issues, either.

I am not advocating to trust anything they say blindly, but they can be a great place to form new hypotheses and learn the right terms to look for when you are unfamiliar with a subject.

Can you elaborate on how you use Gemini to diagnose long term health issues? Considering doing the same for myself, but I have no idea what is too much vs too little information, and generally the type of prompt engineering to do.

Some folks are not going to like what I am about to say, but what I do is write down as much information that I think may be relevant as possible, trying to avoid leading the witness with any of my preconceived ideas of what may be going on. At the end, I encourage them to ask me questions to get a more complete picture of what may be going on.

After a couple of rounds of that, a picture will start to emerge. The AI will make a few XYZ hypotheses of what may be going on, some of which will make more sense to you than others. This is when you can start searching some of those terms in places like pubmed.ncbi.nlm.nih.gov, including for example like diagnostic criteria for XYZ.

One of the ways I often use these AIs, not just in the context of finding possible diagnoses, is requesting them to make the case for and against hypothesis XYZ based on the data you have personally collected. Again, it's not about fully buying every thing that comes out of them, but it can help you consider angles or possibilities that did not occur to you, or that you had previously accepted/discarded without sufficient evidence. Think of them as that quirky acquaintance that knows a little bit about everything but sometimes misremembers, rather than as a god-like oracle.

And don't do all this in a single session/context. Start a new context every now and then, because otherwise it tends to go in circles as these AIs are biased towards agreeing with whatever it is you said most recently. Intentionally challenge yourself, re-evaluate the existing data from other perspectives.

Sometimes what you learn is not pleasant, but as more data becomes available, you learn to accept it. Good luck.

This is a serious issue for young people I think.

I have seen outputs that look good but the actual content is bad. If you’re inexperienced in a field you can’t see it because AI makes anything look right.

I have gotten very good results with AI but you can’t take the first answer at face value. You need to be suspicious and challenging until you tweak out the right answer over time.

(We detached this subthread from https://news.ycombinator.com/item?id=48709121.)

> My hope is that in a couple of model generations, we'll trust AI to review MRIs the way we trust it to proofread our emails.

https://www.nature.com/articles/d41586-026-01947-1

I've started asking my doctors whether they use AI, and if they say yes look for another one.

I don’t even trust AI to proofread my emails.

That study seems to be confounding factors and rushing to a questionable conclusion.

A very plausible explanation for the adenoma detection rate to have gone down is simply that its prevalence went down among the population in the second three-month period.

This was not a randomized trial. Concluding that "AI usage degrades physicians' skills" is questionable at the very least.

There's a whole bunch of other studies on this topic, as well as metastudies, and from what I can tell the problem is real.

https://www.sciencedirect.com/science/article/pii/S245195882... (+ cf. its references)

You should always be getting a second or third opinion from real doctors for matters like surgeries, radiology, etc.

One doctor diagnosis + LLM is gonna throw you off. You need more datapoints.

In the US, this is standard advice. I note that the OP is in Germany. Maybe they do things differently, there.

The OP describes getting injected with a homeopathic botanical formulation and receiving another type of therapy that wasn’t indicated for his condition.

I wonder if this person was going to a traditional doctor or if they were visiting some type of specialty clinic as a second opinion. For most conditions you can find specialty clinics that will prescribe and administer (and bill for) a lot of non-indicated treatments, but some patients like being in the care of doctors who take action and do things after being recommended more conservative treatments by primary doctors.

In Germany we get zero-th opinion because you can't even get an appointment within the next 8 months.

And when you meet them, if you're unlucky they don't want to hear your medical history and want you out of the door in two minutes.

How do LLMs get information from images? Do they have to run essentially the opposite of an image generation model, taking an image and converting it into a description? I'm just concerned that the description wouldn't be able to encapsulate the information needed to differentiate exactly what is wrong with a shoulder. The image -> text model would need to know what it should actually report back to the LLM about the image, so that it doesn't just say "this is an MRI of a shoulder" or similar. It would be like a layperson describing a bridge, and asking an engineer if the bridge is safe based on that description

No, it does not work like that, it actually can process the image itself there is not an intermediate image to text step

How does a Large Language Model process images then?

It can only deal in tokens, so you're essentially right that it creates a textual description before describing it back to you. This process is obviously incredibly lossy and details are easily missed

older vision LLMs chopped up images into patches which were projected into the same embedding token space as words. Newer ones use an encoder to more efficiently project an image into token space. Then it runs through the same attention layers as the text component.

As someone who has had shoulder issues for the last 25 years or so, including partial tendon tears, I can tell you that even if your tendon would have been damaged, the treatment would have been strange. With moderately damaged tendons, you want:

1. stop any inflammation, by taking NSAIDs for a few days

2. detect and correct any behavioral patterns that could have caused the presumed overwear of the tendon

2. start physiotherapy to strengthen those muscles that can take over the load from the damaged tendon

These are not quick fixes, because quick fixes don't exist here. Stuff like shockwave treatment, massages etc will only lessen the problems for a few hours at most, after which they will come back.

Was it 2016 when Geoff hinton said that radiology was a dead career?

Well, we now have the best model of our time (trillions of $$$ of investments) telling us something completely different(and wrong) from a human expert. I would really like someone calling out dario, sam, elon on these things and hear their explanations but alas, a man can only dream.

yeah that is why you would not use a random llm that is not trained in radiology lmfao

diffusion models are probably a better bet for identifying irregular structures

It’s an odd field, obviously it’s in high demand for diagnostics and anytime you have to do an xray, MRI, etc you have to wait hours for one to become available.

I think they’re artificially stunting the field to raise their wages. For example in my city the medical school only accepts 11 people into the program a year. (With an average graduation rate or 3-5). My niece has been trying for 2 years and finally got in this last year. Even radiology is doing AI assisted diagnostics. Half my MRI’s from this year has Doctor notes and HealthBot (AI) notes attached to them.

~ I’m assuming other schools severely limit their radiology admissions as well. To keep the wages high and the field desirable.

free market solution is just order an x-ray machine from alibaba and setup shop. you could add a credit card swiper + ID + facial recognition to plausibly avoid over-xraying people

These days Xray machines - they don't even suit up in lead or stand behind a wall , just point and shoot. In fact they're nice and portable. I wish i had a xray machine at home.

And, to save on combined shipping, a cobalt-60 machine to zap the odd tumour? :)

> Was it 2016 when Geoff hinton said that radiology was a dead career?

Funny how the jobs most at risk of automation now are tech jobs.

Yeah, one of the big problems with that is that Claude/ChatGPT doesn't perceive images the way humans do at all, so when you upload an image to them, it gets tokenized in some form. This is why most LLMs are really, really bad at spatial recognition for image editing purposes for example.

So, unless you can turn the image into a natively tokenized format like JSON or something that somehow accurately tokenizes what's on there, I would NOT trust Dr. Claude's analysis. If you want a second opinion, talk to another doctor. A human doctor.

> There's something incredibly peaceful about being in the hands of an expert you trust. You don't have to worry anymore and can let them guide you through the process.

> AI can absolutely shatter that feeling in an uncomfortable way ...

I see this as a field report in a time of fundamental transition, from a world without AI, to one that accommodates/incorporates AI. For this to happen, AI will need to become more trustworthy. As for the U.S. medical system, it can't get much worse.

I recently had a similar experience (meaning walking a fence between old and new methods), where I was told I could get an appointment with a human medical practitioner in nine months. So, to resolve my anxiety I consulted AI and got an instant diagnosis, one that was later confirmed by the inaccessible medics.

Being a born skeptic I wasn't going to act on AI's diagnosis, I just wanted to know what was going on, resolve some uncertainty. Another advantage: an AI chatbot doesn't say, "Wait, you're on Medicare? Hmm. See you in nine months."

Don't take this as an endorsement of AI's diagnostic abilities -- it's way too soon for that. In my case it was a slam dunk, about a condition I knew nothing about.

The only part of the message I think it would be interesting to the author: what if you set two instances to prove each other arguments wrong considering that each reads one of the report as their POV?

I didnt see the full process but I used unet models for tumor detection so I am somewhat familiar with the possible caveats of any evaluation from a engineer perspective.

First, I would like to point that unfortunately, it is not uncommon to go to two different human doctors and also get two unreliable diagnosis and treatment. The biggest problem, in the way people plan to use ai on health is the lack of liability.

A bug on a regular old web site doesn't kill anyway nor cause pain and suffering (most of the times) but misdiagnosis + the fact that a model is very good on presenting arguments even when it is completely wrong.

Claude code, and I am talking about opus 4.8 here, can tell rivers of information about code pattern and develop the poopiest code the next line.

This is a machine that will deliver a sort of templates document based on the input information but it is not exactly doing the work if you don't directly it to do it right constantly.

Because the model isn't thinking I wonder what happens if you set multiple agents to communicate and defend their point with some sort of harsh penalty prompt for not fulfilling its goal. There are some safety system prompts on Claude models that will trigger it to be very carefully to write. Like: you cannot make mistakes. "You need to ensure that it is correct or someone might end up hurt or even dead"

But you would need two agents and a setup to communicate via pipes or files.

Always worth a share for this scenario. It's not clear if LLMs are capable of doing actual analysis on medical imaging. For details see this article https://futurism.com/artificial-intelligence/frontier-models...

> As detailed in a new, yet-to-be-peer-reviewed paper, a team of researchers at Stanford University found that frontier AI models readily generated “detailed image descriptions and elaborate reasoning traces, including pathology-biased clinical findings, for images never provided.”

> In other words, the AI models happily came up with answers to questions about a supposedly accompanying image — even if the researchers never even showed it an image.

> As opposed to hallucinations, which involve AI models arbitrarily filling in the gaps within a logical framework, the team coined a new term for the phenomenon: “mirage reasoning.”

> The effect “involves constructing a false epistemic frame, i.e., describing a multi-modal input never provided by the user and basing the rest of the conversation on that, therefore changing the context of the task at hand,” the researchers wrote in their paper.

> The damning findings suggest AI models cheat by diving into the data they were given — and coming up with the rest based on probability, even if it’s almost entirely conjecture.

It makes a lot of sense if you understand how these models work but this was a cool read anyways and studies like this are impotent for curbing the unfortunate fever dream some folks seem to be collectively having about LLM omnipotence

The absolute only thing that matters is if they are provided an image what's the success rate.

I don’t understand how this is a different result than giving any LLM a task that is not completely grounded? I’ve observed this in coding tasks, if I forget to include a file referred to in the spec, the LLM will just hallucinate a version of it and my results suck. If I give it the file (and really, all the information I claimed it had access to), the task works fine. I fixed this in my pipeline with a prompt that does an extensive grounding analysis to determine if the assets I’m giving it are complete with respect to the spec (and that the spec is grounded as well, ie it doesn’t refer to something that is undefined).

I wonder if the above problem can be fixed similarly? Just ask the LLM to do a conservative grounding analysis before jumping to the main task?

It's not different- there's a line of research and reasoning where people who don't use LLM's regularly point out issues that have been known (and more or less solved) for more than a year now (which is an eternity in the LLM space).

Ya, that’s what I guessed. I assume everyone who uses LLMs discovers this on their own eventually if they aren’t made aware of it before it happens.

But why should I care? If you demonstrated that a model can perform more accurate diagnoses than a doctor, but also it had this strange behavior when no image was presented, why should that deter me from using the model?

Because you don’t have any way of telling if it actually used the image presented, or based it’s conclusions on a different image it made up

Really? You know you could just ask it.

Which would tell you what, exactly? The whole root of the problem is that the model doesn’t “know” either

This is untrue and probably shows lack of experience with using LLMs. In my experience, each time I get some hallucination, I can ask the llm whether it hallucinated or not and I get a correct response.

> each time I get some hallucination, I can ask the llm whether it hallucinated or not and I get a correct response.

You get a hallucination of a correct response, yes, and given that it's a yes or no question, this hallucination is more likely to be correct than the response to the original more complicated question. But make no mistake that it operates under the exact same constraints

I don't find that persuasive. This is not the error I worry about. Let's say that hypothetically the model just ignores the input image 1 in 10,000 runs. This really doesn't concern me because the output will be trivially detectable incorrect nonsense that doesn't match the symptoms at all. Such a contingency is easily handled by running the image through multiple models and distilling the output, anyway.

The error I worry about is where the model uses the image and comes to an incorrect but symptom matching diagnosis. But in this hypothetical the model is less likely to do so than a doctor, so the choice is either accept the risk of the model or accept a higher risk from a doctor.

I work at a telemedicine company. We’ve benchmarked a few frontier LLMs on public medical imaging datasets. One test included high-quality and high-consensus otoscopic images. We didn’t anticipate the models to do well on something so niche, but what concerned us was how poorly calibrated the models were.

I know you can’t trust an LLM’s self-assessed “confidence” of a prediction, but I’ve found that confidence can at least be directionally correct for some tasks. For our benchmarks, however, confidence was poorly correlated. What’s worse is that binary classification models (“Do you see $diagnosis in this photo?”) highly influenced the LLM to confidently predict $diagnosis.

I’m concerned for those using LLMs for diagnostics, and getting confidently led to the wrong conclusion.

But the binary classification models can be made ternary easily. RL on congruence plus penalty for misdiagnosis is easy to set up and gives great results.

What I’ve seen be the true bottleneck is people not setting up the structured data. But making a tiny reasoning model with OPSD -> GRPO is totally doable with a bit of money.

I recently had a pretty bad injury and out of curiosity I asked Gemini what it thought based on some CT scan slice images (and no other information). Surprisingly it came to exactly the same diagnosis and treatment plan as my doctors, but the big advantage is that I could ask it follow up questions any time, whereas the doctors barely explained anything.

This...

Gemini will ask for the specific images it needs to see and show you examples of what each slice will look like.

But unlike the specialists who often come across as abrupt and rush you, Gemini will happily take you on a deep dive and continue to answer all you follow up questions indefinitely.

Right now the article reads as "AI can play doctor if you give MRI scans".

If the author would actually go for a second opinion (maybe bring along the AI to let it explain it's findings), then the article could read as "AI did MRI analysis and proved my doctor wrong" (or: "AI did MRI analysis and failed").

I would not use Claude to get a second opinion on anything that’s an image.

Especially an MRI which is a 3D medium —something current LLMs are very bad at.

I know little about radiology, but MRI is a 3D medium. I would not be at all surprised if one could slice an MRI the wrong way to produce a 2D image that fails to show a feature that exists in the source data.

> MRI which is a 3D medium

The finer detail (which you may already know) is more complicated.

MR does ‘2D’ scans which are a slice, then a gap of non-imaged tissue (typically 10% the slice thickness) then a slice. Each slice is an image with a number of pixels, say 320. Each pixel in the slice is small, eg 0.5mm but very thick due to the slice being thick, which is required for MRI signal. The pixels are 3mm in the shoulder scan done here.

‘3D’ scans don’t have a gap between slices, and are often isotopic, meaning the same resolution in all directions. The voxel (a pixel with depth) would be something like 1mm x 1mm x 1mm.

3D scans are slow, prone to movement artifact and never as pretty in plane as a good 2D. You can reformat them to look ok in any plane.

I used it on an ankle fracture xray, it was quite useful to make sense of things. But not like a 2nd opinion.

What's wrong with Claude? I've asked it to analyze images and even Opus 4 would perfect nail it.

Sure, it can see obvious stuff in images, but as far as I'm aware it is not designed for (or tested on) performing the kind microscopic analysis that radiology involves

Claude is the worst FM at image understanding. Prior to gpt-5.4 the only usable models were Gemini and Qwen.

Throw a chess board on there. See how it does. It always gets pieces and positions completely wrong because it’s terrible at analyzing images.

I agree with you for some kinds of images, but not all.

LLMs are the best PDF-to-markdown converters, in my experience. I have a CLI that converts PDF to PNG, then run a background agent to "read" each PNG and write it down as markdown; it works flawlessly even for complex math formulas, it can "translate" complex charts, graphs, and tables into words.

It's slow and arguably expensive compared to traditional OCR, but very effective and precise.

Personally I do this as well now with a lot of stuff. I've recently had a lot of issues with my knee, which was operated on about 20 years ago because of a torn cruciate ligament, and now it was acting up again. The specialized doctor did a x-ray (which I thought was pointless because I was sure it was not bones related). Long story short, my left knee is 20 years older then me because of increased knee wear and tear. I don't have a doubt the doctor is right, but I did doubt I memorized everything correctly, and later on I had some more low effort questions I didn't want to bother them with like what movements should I prevent and specifically what training I should be doing at the gym.

Thankfully I got a pretty detailed report that I couldn't read because of all the medical terms. I've fed this to Claude and asked for a human readable conclusion and it repeated pretty much everything the doctor told me, which was great, I now have a readable report for future reference. Secondly I asked it questions about what movements I should and shouldn't do, and it eventually I made a gym plan to improve stability and prevent any more wear and tear in my knee. Lastly I validated this with the assigned physiotherapist, and the plan I created with Claude was perfect!

I probably won't ever use AI as a second opinion, but I would definitely use it to ask numerous silly questions that would help me in day to day life.

Medical opinion will remain one of the last frontiers of LLMs. There so many critical factors that are inappropriate for them. They cannot perform a clinical exam, they have to collect the needed exams and most importantly a life might be at stake (OK, you cannot die from a shoulder problem but you can become handicapped forever).

All that said, as a doctor I am totally open and even happy when a patient refers they took advice from AI. I explain the holes of their reasoning and integrate it with mine. It helps rather than hurts the patient-doctor connection.

I wish you were my doctor!

Do you think you would ever use LLMs in tandem in your practice to help diagnose and treat?

I often ask, usually Gemini, at a medium abstraction level (not general What the diagnosis is, neither specific like What this high serum Ca means). The answers are correct but not enough and ready for consumption without doctor guidance.

A cardiologist friend goes in deep discussions with a specialised model and he is amazed.

I don't know which country this is but this sure seems like a country where doctors have an incentive to maximize the amount/cost of treatment.

I've seen the two extremes in different countries; either they have a tendency to maximize the complexity of the medical situation, or they minimize it "Don't worry, it's just stress" - I've been to different doctors in different countries and I see a pattern based on the country and the incentive structure. In some countries, they will send you off to do a scan for the slightest malaise.

I don't think it's about quality/coverage of public healthcare (at least not on its own; I have not seen a clear pattern across this axis). I think the difference is to do with the referral system. In countries where you can't go directly to a specialist and need a referral from a General Practitioner/Physician first (I.e. in order to get a refund), you tend to get more false negatives from the GP which block you from going to the next stage "It's nothing, just stress-related." In countries were you have the option to go directly to a specialist, they tend to be much more trigger-happy in terms of giving you a full workup and GPs/Physicians will more easily refer you to a specialist.

And I feel like the attitude extends to the specialists themselves. I suppose making people go to a GP first creates a kind of efficiency and predictability which alleviates pressure to exaggerate the severity of the situation.

We provide a second opinion service with certified human radiologists, if anyone's interested: https://expert.med

I need this but for dentists.

My only issue with this was the restriction of "Do not look at any data outside of our working folder" is preventing the tool from doing what it does best. I would have given it access to PubMed to pull the latest research on the subject and validate.

I wouldn't consider Claude itself to be the tool that does a job like this, but the tool that pulls in the best data and gives a supported suggestion. And then go through a number of iterations on where it failed to hone in its assessment.

> It might seem obvious to coders, but the difference between Claude Code and Claude.ai's chat is enormous, even if those two run the same model.

In my experience, Claude Code is vastly better for doing tasks, writing code, etc., but Claude.ai is better for analysis and high-level planning. When I'm working on a new project, I've started using the latter to do the initial planning, get feedback and draw up a spec, which then goes to Claude Code.

For this project, I probably would've done something similar - use CC to get whatever you need out of the image files, but have Claude.ai do the actual review/diagnosing.

Either way, I often think about how far behind most of the world is in really understanding AI. The overwhelming majority of people would never guess that you get vastly different outcomes from the exact same model in a different harness (tbf most people don't know what a harness is). I spend hours every day using AI for a broad range of tasks and still feel like I know a fraction of what there is to know. I haven't even tried the new GLM model (or really any of the open source Chinese ones of the most recent generation). With so many people thinking that the free version of ChatGPT is SOTA AI, a lot of folks are in for a very rude awakening at some point soon.

I was diagnosed with a rare blood disease called Essential Thrombocythemia (ET) which is part of a group of diseases called myeloproliferative neoplasms. This happened about three years ago. Recently, I decided to get a second opinion and my new specialist changed my diagnosis from ET to Polycythemia Vera (PV). She also highly recommended I quickly go and give blood to lower my haematocrit levels as it put me at a much higher risk of a blood clot. This is standard practice for people with PV but not people with ET. I decided to put the details into google AI in the same way that the original specialist used to diagnose me. Google AI predicted I very likely had PV instead of ET. I also asked Google AI how one could misdiagnose my condition with ET instead of PV and google correctly explained how. My specialist had used my high platelet count and blood test that came back with a JAK2 mutation then after a bone marrow biopsy to incorrectly diagnose me with ET. My high hemoglobin levels should of been checked by my first specialist as an indication of PV not ET. Only the second specialist picked up on this. Google AI took five seconds, and is free. The specialists costs $$$ and took weeks.

Interesting. I am also diagnosed with ET (from platelet counts, pathology report noting abnormal platelet morphology, and JAK2 mutation from a marrow biopsy). What made you seek a second opinion?

My original specialist wasn't very engaged with my condition. I was getting the same speech every six month visit. On my last meeting she incorrectly stated a condition I wasn't having with bleeding. My wife had a thyroid issue a number of years ago including cancer growth on it. Her first specialist was using older techniques for her treatment. We ended up going to another specialist who's focus of research was her condition. It was worlds better. Given that experience I decided to find another specialist who focused on my condition.

The first specialist ( hematologist) was referred from local GP. She is a a hematologist, but she wasn't focused on MPNs.

I recommend joining your local MPN alliance to keep up with what's going on in this field. I also recommend finding a specialist with a focus on MPNs. Looks at their papers or listed focus.

I'm pro-AI, but when I can't even give Claude a photo of my fingers clearly on four different piano keys and get an accurate result of which keys I'm pressing, I'm bearish on its visual analyses. (With that said, I imagine it's been trained on more photos of MRI scans than people playing piano, so I could see how it might provide interesting ideas for a radiologist to consider.)

Seems like we've forgotten something already? LLMs are bad with the butterfly effect by their very nature. An extremely slight phrasing change can absolutely trigger a deterministic output decision that is out of touch with reality. Tuning only helps if there is training from a previous input. As far as I know (casual research), there still isn't a great solution to this, only marketing hype.

I had shoulder pain about ten years ago. Had an MRI. Found evidence of a tear. Was told I would need surgery and referred to a sports medicine doctor. He looked at my MRI and said the real problem was my shoulder was frozen, and he could do surgery but the PT after is what would actually be what helped me. Two radiologists and two doctors saw my MRI before this moment. Sure enough, with a little PT I got better.

I’ve had several more medical blunders since then, including a doctor telling me my problem is to lose weight 48 hours before going into emergency surgery.

What I have learned is to be weary of any time I feel like I’m in a “funnel.” Once you’re in the funnel, no one is thinking critically about your issue any more. One person said they found X. Next person reads that and assumes Y and recommends Z. And so on until the alpha is multiplied to hell. Lots of treatments that don’t hurt but don’t help and run up insurance.

I have since used AI the last couple years and it has either concurred with my doctors or given me enough ammo to challenge them. If I were the author, I would trust neither but use Claude to ask how to go back to that clinic and challenge the diagnosis.

Getting an actual second opinion seems like the next step?

> My hope is that in a couple of model generations, we'll trust AI to review MRIs the way we trust it to proofread our emails.

the doctors may have financial motives to suggest unnecessary treatments. but i fear, by the time we'll have models powerful enough we'd be _theoretically_ able to trust their expertise, the financial motives will have shifted to the model creators.

Radiologists very often have to weigh up different theories, guidelines based on the symptoms. The certainty of their diagnosis is their added value, or if they don’t know they will tell you why.

An AI telling you it could be X or Y because theory ABC… is the academic answer and a luxury clinicians don’t have. AI doesn’t give you what you want. I don’t see any added value in using generic AI models for this

Why wouldn’t you as a doctor by standard run the images through a certified compliant LLM? The actual cost won’t be it and then you can see if you get any new ideas from it. See if it’s just wrong or that it spotted a little detail you missed?

The LLM doesn’t need to be leading or whatever but then you can have a conversation with the patient. If their ChatGPT reports has differences it can be analyzed as well.

It feels like the time constraint of the 15m doctor sessions is the thing. But if prepared immediately after the scan then why not?

There is always time needed to factor in new developments and innovations and that’s fine. Just moving blindly work from human to LLM is wrong. But learning on and testing with all the ai tools incoming constantly won’t be a waste. There will be more and more tools in those processes outside of human judgement, better improve the workflows now to be able to test and plugin new models and systems when they are ready.

I've been starting to think of LLM as a great tool for "lead generation," borrowing a term from sales. Most of the things it comes up with don't pan out, but in many cases it's things we wouldn't have thought of, or at least not as quickly. This is especially in the context of web service or SAAS outages.

> standard run the images through a certified compliant LLM?

Because they don't exist, yet.

In the UK MRIs and other imaging systems need two opinions. there has been a move to allow the first opinion to be ML based.

The _problem_ is that you are basically doing grey smudge analysis, and thats fucking hard.

Because they might bias you. And because you have your own brain, training and experience

That does make sense but the order of it might be: doctor analysis. Then show LLM as double check to doctor. Doctor assesses and may keep en improve the doctors first analysis?

Another problem is that general models' performance just sucks. From an upcoming conf. talk (in pathology) where they ran 2 Medgemma models on 100 slides with known diagnosis:

> Results: Full concordance with the reference diagnosis was 8% (27B) and 5% (1.5 4B; McNemar p=0.68), while partial matches were 29% vs 20% respectively (McNemar p=0.053). When correct diagnoses anywhere in the differential were counted, 51% (27B) vs 30% (1.5 4B), with 27B significantly superior (McNemar χ²=12.1, p=0.0005). Site-level performance varied widely (30–100%). Both models reported HIGH confidence in ~99% of cases irrespective of correctness.

i.e. highly confident, wrong 95% of time. in 49% of cases the real diagnosis wasn't even on models' differential. Doctor can hardly improve using something they can safely assume to be just noise.

https://ecp2026.abstractserver.com/programme/#/scientific/de...

Totally agree on that, if you have to look constantly at something 95% there is no value. The expectation of course is that it will be better. But if not at a certain level useless.

Not sure how that research compares to the claims being made by many that a second opinion via ai in the end led to changes in treatment. Likely people spent quite some time searching and figuring out. That would be a different and n=1 result. Don't have enough knowledge of that research to determine how much result can be gained when the models are managed in a way that produces better results.

And of course how much time/effort/cost that would take. How much is custom and how much is an automated programmable flow.

Went to a new dentist recently and his staff took x-rays of my teeth. I was then waiting for him to come speak with me about what the x-rays show him yet i just took a pic and uploaded it to Gemini. 9 months back my previous dentist said i should have a filling or potentially a crown was needed. I told Gemini this and that ive only about 3 fleeting pain issues in that area. With the x-ray and that info Gemini told me the exact same thing the dentist later came in and told me. If pain comes back and for long periods of time then there's an issue as the x-rays look fine.

Overall i see a great opportunity for x-ray techs (radiographers even when Jensen from NVidia says the first field he recommends not getting into - Radiology which is the step above) to open their own businesses for people who want to use AI for self care and help. Have one doctor or dentist on staff to use as needed.

Go with your report back to your doctor.

A family member has cancer and we treat chatgpt as part of the team (our doctor's words). I ingest everything into it, work with it to make a good report. Then at the next visit we review it.

This gives you the best of both worlds. You get peace of mind and the doctor explains why and how the agent was right or wrong.

Twice now we've caught consequential mistakes (wrong pain medication and incorrect notation of the exact mutation that he has). Which have made a difference to his quality of life and treatment path.

Most of what the doctors have said is in line with the agent but when there have been disagreements they've been very reasonable. Sometimes the doctors have gone with the agent's version sometimes they've explained why that's inappropriate.

If you see an orthopedic surgeon (the much more common name for this type of doctor in the US) about almost anything you will almost certainly end up with an MRI (good chance your insurance won't cover this fully) and some kind of recommended intervention.

Although it does not handle MRI files yet. I opensourced an AI workflow that helps in figuring out issues with my family.

https://karankurani.github.io/OpenCareLoop/

It has helped me personally solve longer chronic problems in my family that doctors just dont have the time to go into indepth due to their (understandable) lack of time.

Its in alpha and AI hallucinates. Use with care. Feedback welcome.

An AI agent for personalized healthcare is inevitable. The cases such as the one posted are all solvable with time. AI has hallucinated and continues to hallucinate but the value we get in the space of coding can be extended to other domains.

A coworker just spend a weekend with AI analysing his image data. No problem detected. The official diagnosis came later: he had a serious degenerative problem.

These models don't have curated image exams in their training data. Your can't trust them.

Can any LLM give you the rough pixel coordinates of an item it identifies in an image?

I found that while Claude, GPT etc could describe an image, there was no way to link the description back to specific pixels in the image itself. Not even to a bounding box or segment.

Not as smart as modern frontier models, but Moondream and Molmo can do that sort of thing.

> So I'm left in a state of limbo where I either try my luck with another doctor or wait and see if my shoulder gets better with the rehab I'm doing.

Get a second opinion from another doctor. If that’s inconclusive, see three.

As a neurologist I read often imaging findings myself. However, one ability of the radiologists I appreciate is their ability to discern through artifacts by years of experience. I am not convinced the current AI crop can reach this level of discerning yet. But I am pretty sure they will reach us and surpass us there as well.

For the moment, I would prefer the final opinion always to be from a human (the human-in-the-loop approach in medicine). Best course of action is to run these LLM assessments and bring them to the next appointment and challenge constructively the doctor.

> There's something incredibly peaceful about being in the hands of an expert you trust. You don't have to worry anymore and can let them guide you through the process.

> AI can absolutely shatter that feeling in an uncomfortable way...

As a mental experiment, think how things would look like if the AIs were right more often than doctors. Then living longer and being healthier would imply living with a lot of "technical medical worries" that you don't longer get to outsource to a black-boxy human wearing whites. I know some people who are already ridding that train.

As everyone knows here a large language model using probabilistic next phrase approach will not be able to "diagnose" results from an MRI - at least not with enough confidence. It lacks the patient's history and a snapshot along with very varying datapoints in the training set will lead to "approximate" results. Not what a true doctor with a 360 view of a particular patient's health would be able to diagnose. That 'approximation' will get "better" in time - which only means the results will be replaced by yet another approximation.

Hey OP my wife had a subscap tear and went through with surgery. Recovery was ROUGH, she couldn’t use that arm at all for almost two months. It’s amazing how much this can cripple a person, we don’t realize how much we use both our hands for our daily lives until one is gone. Even basic stuff like cooking, bathing, etc. If you can avoid surgery you should. Try doing the Buckburger 12 (spelling?) shoulder physiotherapy regiment. You’ll need to even if you get surgery, but this can help with tedonopathy. Also try to identify what is causing the repetitive stress and cut back on that activity.

I do powerlifting and couple years ago, I developed bicep tendinitis on my right arm. Even a tiny bit of weight on it while palm facing up would cause crazy pain. It was funny how I weight from lifting heavy weights to not even being able to carry a plate of food, not being able to press soap dispensers, or give a spot to someone at the gym.

Even a tiny injury can severely cripple us.

Same, sprained my wrist/forearm a while back and couldn't rotate it without pain or take any weight palm up. Couldn't even rotate a door knob.

It wasn't until I pushed through with weights, avoiding any underhand grips or rotation, that it started getting better. Doing bicep curls but keeping the thumb up strengthened the forearm to the point where I was back to the weights I was lifting and could then gradually add some rotation.

I tried the same on images of disks in my back. The ai picked a slice not from the middle and used that to say they were too small (since it was looking at a slice towards the edge) and basically told me my life was over and my pain would last forever.

Luckily my disks were fine. Wouldn't trust it. Additionally, an MRI of a pain-free, healthy human still would show lots of things and damage. Unless it coincides with a symptom, it's probably harmless. That's why the history is important when looking at images. Can't just upload something and hope for findings.

> They injected me with Traumeel, which is registered in Germany as a homeopathic medicine "without a therapeutic indication".

This single sentence provides a huge clue about what’s going on: This person’s medical team is not good. It’s not hard to get an LLM to perform better than a team that is injecting homeopathic botanical formulations and performing procedures that aren’t indicated for the condition.

I think the real takeaway from this article shouldn’t be “ChatGPT is better than doctors”. It’s a story about LLMs identifying that someone was not in good hands.

> I won't go into the details, but he suggested I get an MRI, which the clinic conveniently had available.

And

> They performed shockwave therapy on my shoulder

(a procedure that may not be effective, but is unlikely to cause any harm)

Its not just about LLM's being better, its about people not trusting DR any more: https://www.physiciansweekly.com/post/the-erosion-of-trust-i...

If we want to fault the article for anything it's that he didnt take that information and go get a 2nd opinion from someone who IS more informed.

Any medical-field-position that recommends homeopathic stuff is instantly in my "full of shit and not trustworthy on anything" list, and I'd go elsewhere immediately and file complaints anywhere I could. There's no excuse at all, they're either fools or scammers, and I want neither anywhere near my (or anyone else's) health.

That said, while I do see homeopathic stuff with that name, it's worth verifying that it isn't just a naming conflict. They're not always unique, particularly across countries, and Traumeel seems to be more of a brand than a specific thing.

I am confused why none of the experts weighing in here address this at all. Like I get that AI is generally disliked, but ignoring facts only makes me want to not trust doctors.

I did the same exercise here with medical reports and CT scans for a friend's cancer diagnosis and I got ahead of the oncologists predicting they were about to be cured. Spoilers: yep, cancer free now.

And well, yes, I have the appropriate life science degrees to navigate clinical trial reports and research publications, and that was likely indispensable for steering Claude Code where it went, the radiologist's caution is merited here. But it's just not amateur hour for me to do this, it's 2 decades of academic research in my rearview mirror.

the more I think about what intelligence really is and what it is about humans that AIs seem unable to replicate, the closer I come to the conclusion that personality is a huge component of intelligence. Certain problem spaces have a structure such that personality differences are stripped away, like in math problems for example, but more and more I am genuinely starting to believe that personality drives intelligence.

There is an undeniable mechanical / logical / objective component to intelligence that acts as the machine to get answers, but I am becoming ever increasingly convinced that you cannot actually separate this machine from personality and still perform at the highest level it is capable of. Communication has its own intelligence limits, and I do not think the marketing angle of "putting intelligence on a meter for you to buy" is going to be an actual real application of intelligence. Not without also outsourcing your personality or being satisfied with a flanderized impersonator of yourself as part of the intelligence

it may seem like this sort of thing should be ignorable for analyzing an MRI, that it's an objective conclusion. But medicine is not really as black and white as it seems. Doctors often have different opinions and they are credible. scans are not oracles, interpretation is involved, as well as a measurement of faith in what the patients body is able to do on its own and what it cant. hard to describe in a simple comment, but the point is that medical diagnosis are not exaclty something that can be packaged into perfect products for consumption to turn into the 1 and only treatment that's best for you

Hey, glad you did that , I have done the exact same think last week but the radiologist interpretation and claudes interpretation was pretty much the same ! you want my doctors number ? lol

Recently I was at the doctor for a very minor sports injury ("tennis leg"). The doctor — who was in his 50s — was explaining the degrees of the injury to me, and quoted ChatGPT as the source, along the lines of "ChatGPT usually says you have to rest for.." I thought it's quite funny, but after thinking about it, it's really no surprise that doctors also use AIs to look things up / clean up their diagnosis.

> There's something incredibly peaceful about being in the hands of an expert you trust. You don't have to worry anymore and can let them guide you through the process. AI can absolutely shatter that feeling in an uncomfortable way

It's always something along the lines of incredibly peaceful, insanely powerful, extremely interesting, also scary and uncomfortable meanwhile feel like magical super powers and science fiction.

I'm telling you... words have lost meaning.

This seems less a demonstration of competence than of accessibility.

Often we only get 10-15 minutes with the one health professional that makes a determination and sets the path of your life for some time.

As opposed to being able to spend hours with an LLM that in many ways feels more sympathetic and helpful - even though it's competence is in question.

So here we are:

1. with doctors processing patients every 10 minutes like a machine.

2. and machine's processing, for a patient, at any hour like a human.

Imaging is one area where patients will be able to become more educated to ask better questions.

The areas of premature heavy interventions can be a challenge, especially where there might be room for interpretation and the medical professional didn’t share all possible options.

It’s critical to ask all professionals for all possible options and write each down as they write and explain it. No one’s perfect, and not everyone is negligent or malicious.

I wouldn't trust anything from Claude here image-wise (maybe to get a 2nd opinion on the report itself and treatment it's reasonable), but also, on the cases there is something something serious, go to at least 2 different doctors and if they have different opinions go for a 3rd for a decisive vote, besides doing your own research (it's not that uncommon for hard cases to be badly diagnosed).

I would like if we could have a site where you submit your MRI then doctor commenters anonymously post their opinion. In general I want a forum where.. when people come with questions for which there are varying opinions we don't just have people leave their 2c and then jet. The thread persists, duplicated ideas get merged, erroneous statements get purged and gradually we refine shining truth

I’m wondering how many radiologist want to work all day, then come home and work.

Many can get paid fee-for-service for after hours work, so would probably prefer that.

there's plenty of doctors doing volunteer work, this would be just another medium to do it

I have used Gemini 3.1 Pro through CLI to analyze my DICOM images. It gave me the same diagnosis as radiologists. But it was just interesting test

I put a MRI of my body part into Gemini 2.5 Pro (for fun) and it said it was my brain. These models don't necessarily have that data.

Thank you for sharing. I'm about to get my MRI scan on my right shoulder tomorrow. Now I'm wondering what I'm going to do even if the result shows benign. Certainly, I would double check the result if it's concerning, should I also check a comforting result in case the truth is less comforting?

I was building a pc and the ai was hellbent on saying either the cpu pins are bent or motherboard is faulty. Both giving me a panic attack. The solution came from updating bios which i had done so ai ruled it out. But the shop owner did the bios update again and it worked

I had similar experience, Claude made report of MRI for achilles tear, it measured the gap, but it was completely hallucinated. Achilles tendon is black on the MRI, it instead measured 13mm distance between two completely different things (looked white), the radiologist looked at and saw no gap at all

I use LLMs every day and value the benefits they offer, but this approach seems misguided. A smarter way to use them would be to consult the LLM before seeing the specialist and ask it to bring you up to speed on capabilities/limitations and develop a list of important questions to ask.

If you ever get a MRI!

I'd like to have one for my broken shoulder, but they decided the x-ray is good enough before my shoulder OP. At least I got a date for my shoulder OP one year after the accident. Everything's perfect in Germany.

Given the tenor of the comments on this article, I think reading TFA is super important, especially the author's disclaimer at the end, where they state that they're definitely not blindly trusting the AI at this stage, just that they find the differential unsettling.

I am reminded of the old saying that anyone who diagnoses themselves has a fool for a doctor,

I'm surprised about the 266 MB of DICOM images, I've never had an MRI but my CT results are generally between 1-2GB (zipped) and I always assumed an MRI would have more data, guess I was wrong about that!

As a developer I have many times seen Claude's models confidently hallucinate, jump into conclusion. Fable though I used just for 2 days, didn't experience it much in the short-term.

German doctors are very prone to quackery. Including their nurses.

I've overheard a nurse at a university hospital argue with patient who used tape on himself about the color of the tape. She was worried he might use the "wrong color". Again: at a university hospital, where they teach MDs. Half of them recommend homeopathic remedies

In short: quaks.

AI use is such a polarizing topic anymore. What ever happened to just waiting and seeing how it all plays out? Since probably none of us is going to be able to predict it anyway.

I would trust a doctor with decades of experience and his diagnosis and treatment plan than some LLM.

It like using WebMD for any ache and pain and it is saying it might either be Lupus or cancer.

Anecdote on healthcare, adjacent to this.

My dog had been acting off. Wouldn’t eat, was hunched over, looked sad. We took him to a local vet who did an X-ray because they suspected a blockage. They didn’t see one, so they sent us home with standard pain meds.

Randomly, we had a dinner party that night and another vet was there. She heard the story and immediately said, “Go home right now and take your dog to an emergency vet with ultrasound.”

Turns out, at the time, most vets had been trained to use X-rays to look for blockages, but newer evidence showed X-rays were only something like 20% effective compared to ultrasound, which was closer to 95%. (forget percentages but somethign like that)

The ultrasound found an avocado pit stuck in his intestine. He had emergency surgery that night.

That chocolate chunk of an English Lab ended up living until 15, and only needed two more blockage surgeries after that...

I know doctors hate patients reading the internet, and LLMs are going to make that 1000% worse for them. But hopefully over time, we all adapt together and end up better off in the long run.

I read the article, I read the AI's verdict, I read the comments here, and I still don't know if OP does or does not have a tear in their tendon!

The AI doesn't present evidence I can understand, it doesn't even present a plausible explanation why someone could conclude it is a tear.

The main things that made OP suspicious are the possibly unnecessary shockwave therapy. Which seems harmless. And using a homeopathic gel that I would classify as more of a herbal medicine because it contains several ingredients I know people use for shoulder pain, and some even in concentrations that might even have an effect.

If this is the best rebuttal AI can come up with I would trust the diagnosis. But then OP never trusted the diagnosis and now they have several they cannot.

I wonder what this article would have concluded if the author considered how many individuals of the HN readership were professional radiologists.

Word of caution, I used Claude to read my MRI images too.

Looked legit.

Until I really dug in, and found that all it did was read the embedded annotations.

DICOM is a container format after all.

Everyone talking about how doctors know better or have some context that is not shown here.

But are you all forgetting that they literally injected a homeopathic drug on the author?

Between that and Claude sometimes hallucinating, it’s probably worth encouraging patients to take second opinion always.

> But are you all forgetting that they literally injected a homeopathic drug on the author?

I'm no fan of pseudoscience either, but this is where things get blurry. The placebo effect is real even if patients are aware of it. If you give a patient a homeopathic drug while informing them of potential side effects (if any), and then they feel better, have you hurt them? Or have you helped them?

I personally have no interest in trying homeopathic medicines, but the reality is that many patients do take these and are adamant they help. As long as any risks are communicated and there are no serious side effects, it's difficult to make an argument against their use in patients who report a subjective benefit.

This is relying on the patient being stupid. I would always prefer just an honest explanation of things rather than pseudo-science drugs. And if I do discover that it's a pseudo-science drug then I've lost all confidence in that doctor. Doctors should stop pretending that they have access to some divine knowledge and everyone else is stupid.

And this interpretation is charitable, assuming that they wanted the patient to feel better via placebo. A different (and more likely) interpretation being they just wanted to charge for something extra.

Trusting Claude Code with my MRI before I trust it with my production database. Priorities.

Nice, I have Claude, now I just need an MRI (which in some countries is sort of a hard requirement still unfortunately, long queues)

I had Claude interpret a photo of the heart monitor when I was in the ER last year. It said I was about to die. I was fine.

You can try sending basic chest radiographs to GPT and it'll fail at interpretation. I'd be wary of premature conclusions.

Its very interesting how people trust LLMs in domains they know little about.

Instead, it is my experiences with LLMs in a domain that I know very well that makes me skeptical of their performance across the board. I find issues in code review multiple times a day with their output, and they are explicitly and extensively trained on this use-case, unlike with the MRI data. Sometimes I veer into other domains I have decent knowledge about (construction, carpentry, landscaping) and LLMs disappoint me there as well.

I suppose Gell-Mann amnesia is a universal human quirk and not restricted to just the news.

I love how the doctors injected basically water. I imagine the doctor thinking "we did all we could"

The text on this is unreadable on my machine because the background immediately goes to white.

This is like someone not knowing software development at all doing a code review.

Here's an example that illustrates a shortcoming about how medicine has historically been practiced and how it might change with the advent of AI.

A person very familiar with me was having an interaction at a review board level at Stanford. They had this rare illness that they were treating and someone had the "bright idea" of suggesting of saying ... "hey, why don't we look at the ten other times we treated this exact illness and see what worked!" Everyone was delighted with this novel idea (discussion circa 2021). My person was a bit disgusted as this is simple feedback loop style improvement and WTF! they should be doing this all the time to get probabilistic style suggestions for many treatments. I know it happens within certain healthcare systems (e.g., Kaiser had full EMR back in early 2000s and saw right away that VIOXX was killing people. So, they stop prescribing it. citation: Kaiser panel member paraphrase at a healthcare conference in 2010). If you just observe the healthcare system, you can see that the healthcare systems and most EMRs don't typically capture the feedback loop (i.e, when's the last time a doctor followed up and said "did you feel better after the last treatment?" or measures the result.) AI itself can't solve this as it doesn't have access to the data feedback loop. However, maybe AI's within the EMR will help "suggest" evidence based treatments. I could go on and on, but as a math guy, I've often been shocked at the non-evidence based assertions some doctors make. My conclusion is that if you're not "in the fairway", they are typically just guessing.

I've found ChatGPT to be much better at medicine than doctors. For example, every winter, I would get itchy toes. I was quite concerned because they could be quite painful. But the symptoms were not obvious and they wouldn't occur often. The toes would swell up and become quite red and uncomfortable. One doctor suggested gout, which was not the right diagnosis, because I have no urea problems. Others suggested a skin cream.

No... I told ChatGPT exactly what I told you and it came up with the answer: Chillblains, which should have been obvious given everything I described, yet general practitioners were clueless and often reached for high intervention approaches

Harmless condition fixed by wearing socks. I brought it up with the same GPs who had misdiagnosed me and none had heard of it.

Of course, I'm cognizant that it could be mistaken, but a hospital fed my diabetic aunt a normal sugar diet while she was in a coma and forgot to give her metformin, so I mean, it's not like humans can't be retarded as well. The difference is no one gets offended when I point out ChatGPT has the capacity to be an idiot. Instead they just fix it.

the more awesome thing to me is that you can run the MRI through an ensemble of LLMs and check to see if they converge among each other

I'm seeing surprisingly few comments about OP getting homeopathic treatment

I have had terrible experiences with medical professionals. Especially the experienced/senior/specialists. First, they just don't have the time to do a thorough research of my medical history. Second, they are often arrogant and resistant to any kind of critical questions. They have an apparently unwavering belief that they are correct. In fairness, they probably usually are, but they are not infallible, and they are at their weakest when it comes to the edge cases.

AI is completely without ego, and can process all my medical records in minutes. In truth, even today, I would rather have an AI analyse my records.

If you have 2 clocks you have none.

Or you have an interval?

The thing that annoys me about AI discourse is that AI is a mathematical technique of rapidly increasing efficacy, and yet everyone personifies it. It would help if every time someone said "AI" they supplemented "a mathematical method where extensions onto a very large corpus of information are statistically simulated".

It's not true that "AI makes mistakes" or "ChatGPT is sycophantic". It's just that sometimes the simulated extensions to the training material are accurate, and sometimes they're not.

I think this draws too strong a line between the matrix-math core and the harness that uses it. Those harnesses undoubtedly were built with purpose and the systems fail to achieve that goal. Common usage says the the DMV can make mistakes, like any systems, despite the DMV itself not being a person (and it is common to allege large organizations make mistakes even when no specific individual is making an identifiable mistake). This isn't person-language it's systems/purpose-language.

I understand and somewhat agree with your point, and might have phrased my comment differently. I think my main point is that experts aren't always going to beat "a dynamically simulated extension onto the training material". Often they will, maybe even usually, but sometimes they won't, and I feel like the people in this thread insisting that the experts will always know better are thinking about a competition between experts and a crazy robot instead of a competition between experts and math.

I used my dog to clean my room.

I asked a bird about my father's potential prostate cancer. It gave extremely good advice.

This could be a starting point for consulting a different human expert for a second opinion (e.g., specific questions to ask about), but I wouldn't put much trust in Claude alone on this.

IME, on an almost daily basis, claude.ai and Claude Code are confidently wrong about something, and use polished language to assert nonsense.[*]

If it's doing that on something easy, like factual knowledge available in text on the Internet, or programming code that can be inspected easily and follows well-known rules, and I can tell, because I understand those things... then there's no way I'm going to assume that Claude doesn't also BS when it comes to someone else's field. Especially not a field that requires some of the smartest people to go a decade of training, just to get started in the field.

[*] And if I confront Claude with its mistakes, eventually it apologizes, and acts as if it's learned something, again mimicking word patterns it's heard real people use and mean, without meaning any of it. I wonder whether the AI user experience would be better, if LLM-ish interfaces weren't implicitly created in the image of fake-it-till-you-make-it overconfident performative sociopathic techbros.

> There's something incredibly peaceful about being in the hands of an expert you trust.

I want to know if this is a religious thing, or is related to never having had multiple doctors so bad it seemed like they were actively trying to kill you, or both. I've never had this peaceful experience personally within the realm of healthcare.

> AI can absolutely shatter that feeling in an uncomfortable way

Good. Reality is always good.

> but I don't know if I can fully trust AI either.

WTF??!? Why on earth would anybody ever think they could fully trust LLMs? Even their most vocal proponents concede they aren't infallible panaceas.

I have already done that several times, and I found the comments from ChatGTP/Claude, is absolutely bullshit.

Fucking doctor google bullshit, they want medical treatment but don't want medical advice...

Personally my favourite feature of the new ai world is not when I use it directly but it's when one of my managers uses it to try to fix a problem, then issue to me their findings and I have to defend my process to someone who understands neither my process, their suggested solution nor often the problem they're solving in the first place.

True, but this was a problem long before AI (read this article, met this guy at a conference who told me x, my boss said blah)

AI probably exacerbates it but crappy managers exist regardless

Before maybe you had to deal with someone hiring schetchy consultants once in a while, but now the managers have a limitless well of dubious answers to draw on at any time.

But now you have a new tool in the upmanagement toolbox: subtlely tell them to implement their idea in prod with Claude Code, and see it for themselves.

Yeah dealing with this now, where my CTO is shipping features that are producing plausible results but just wrong. So, now I gotta spend all day explaining the math behind certain features to her, and she copies and pastes it to Claude.

It gets worse when they challenge your solutions by feeding it back into the LLM and sending the response on to you, arguing with an LLM is exhausting, arguing by proxy with a human parroting its responses is excruciating.

On the plus side when they do this they can't flood your calendar with those "quick chat" meetings because they know they won't be able to hold a conversation on the issue beyond the first minute.

This happened to me on a paper I submitted recently where it was clear the reviewers used AI. Revising a paper based on LLM review is also exhausting, haha.

I've seen coworkers do this to each other when their expertise is in different domains.

I find that AI can be incredibly useful, but just text dumping its output into a conversation feels insulting.

Sometimes I get a lot of "Do you want me to work up how the UI will look."

They give me what they'd like the UI to look like, but none of the actual content fits outside the one situation they're thinking of.

¯\_(ツ)_/¯

Thankfully where I work now everyone is good about taking no for an answer.

Fight fire with fire. It's over the top passive aggresive, but it works. Whenever I get a JIRA ticket that was clearly AI generated and is 10x too many words, I tell Claude to respond to that ticket with my actual real opinion or suggestion, but make it 10x more words.

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