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dvt

19,362 karma · joined October 14, 2012

UCLA alum (philosophy, mathematical logic), startup guy, data engineer, CTO, immigrant, amateur kayaker. Find me at https://dvt.name or @davvv on Twitter.
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dvt··on Surprisingly complex waves reveal the brain's inner workings
Penrose and Hameroff have been arguing this for decades (see Orch OR[1]). Their arguments are interesting, but certainly not open and shut.

[1] https://en.wikipedia.org/wiki/Orchestrated_objective_reducti...

dvt··on America.gov
https://imgur.com/a/lZYmy5I

Not sure why people are willing to believe this without actually fact checking. Yeah, Orange Man Bad, whatever, but come on. It's trivial to verify and trivially untrue.

And yeah, I guess if you dig deeper it's somewhat editorialized, but it's not literal Tianmen-tier censorship:

https://imgur.com/a/I0CqPcg

dvt··on Revealing the details of how OpenAI agents hacked Hugging Face
It's literally the infinite monkey theorem, it's not even really a strategy per se. These OpenAI/Anthropic "research" LLMs are permutation machines with budgets in the hundreds of millions of dollars. It would be more surprising if they couldn't string together something workable after a zillion tokens.
dvt··on LensVLM: Compressing long context as images, expanding only relevant pages
I remember reading a paper entitled "A Picture is Worth a Thousand Tokens" or something similar like 2-3 years ago. The reality is that no one really wants/needs contexts that big, anyway. It's hard enough making LLMs truly useful even with a small/medium context.
dvt··on 28% of job postings on company career sites have been open over 90 days
As someone that's currently looking (with plenty of experience, corporate, startup, and contract), can confirm it's pretty rough out there. I think the application process is just becoming enshittified: because HR uses AI to filter, applicants are starting to use AI to apply, so we have volumes and volumes of nonsense flowing back and forth.

Been working professionally for ~15 years or so, and it's never been this bad. Other than "knowing someone" (i.e. a referral, and even that falls through routinely), not sure what the best way to snag a position is these days.

dvt··on Unreal Agent
It's kind of self-expanding/looping; fractal is just a cute name I like, but it's technically a directed cyclic graph (since you always have/want cycles).
dvt··on Unreal Agent
I think this space is very untapped. Models are interesting, but I am absolutely obsessed with some things I've been researching/working on for the past few years:

Fractal tool discovery: tool taxonomy where an agent can "drill deeper" to find what specific tool it's looking for. Helps if/when polluting context with a zillion (mostly unnecessary) tools.

Leveraging splay trees: this is my favorite data structure and I think relatively unused in the context of agents/harnesses. A lot of times, recently-used workflows/tool-chains will be used again, so having those at the top of the search hierarchy is an awesome optimization.

Virtual containerized notebooks: models working in sandboxed (WASI) Python notebooks is incredible. Even local models (if given enough time) will usually converge on a good solution. Being able to mount tools/resources/fs is again, imo quite untapped. Some problems here are running native things (thing numpy/pandas) in containers is a nightmare (or impossible).

Anyway, happy to see other folks seriously doing stuff in this space. If anyone wants to collaborate on anything don't hesitate to reach out :) I'm also actively looking for a job or some contract gigs.

Fun times ahead.

dvt··on Show HN: Radius – A Meetup.com Alternative
I follow local coffee shops, hotels, bars & coworking spots. They always post events on their social media.
dvt··on Show HN: Radius – A Meetup.com Alternative
Between Partiful, Posh, Luma, Instagram, and yes even Meetup, I'm not sure how people aren't "finding events" around them. I literally get invited to like 100+ random things every week.
dvt··on Show HN: I created an open source locally usable full fledged AI platform
This is a neat idea, but seriously just like a few bullet points on a clean website would be better than the current slop vomit.
dvt··on Training a 4B model to produce 81% faster query plans than Postgres
> ⇒ this may be useful for some workloads, but even then, can you afford to spend hours every now and then to update your 4B model to ensure it still picks a good query plan?

I think this would be likely comparable to a scheduled backup, so I think it would be an acceptable maintenance window. However, deterministic algorithms would likely beat re-training (or re-fine-tuning) the model. For example, one could analyze actual distributions or whatever (instead of assuming uniform), and then some plans would automatically be eliminated.

Imo a good thought experiment is to look at places that are hyper-optimized, like compilers. Would LLMs bring anything to the table (architecturally or performance-wise) to a piece of software that has been carefully crafted for decades? (Methinks no.)

dvt··on Claude Cowork and chat are now one Claude
> How in the world would I interface with claude other than sending it messages?

The protocol will of course be `text -> text` for the typical LLM (though some new models are structured, as we saw yesterday with Jev). Even so, the user doesn't need to be exposed to the protocol (almost ever). It's not like I'm crafting a POST request to send this form.

There's a lot of room for window dressing, and I look at AI like I look at the touch-screen. It was a fun technical toy until people (mostly Apple) poured in a lot of serious effort into "ok, how do we make this pleasant to use, intuitive, and genuinely useful?"

dvt··on Claude Cowork and chat are now one Claude
My personal hot take is that the product people (engineers too probably) at these companies are just straight up lazy. Yes, a new UI paradigm is hard, but it's been painfully obvious that chat just absolutely sucks. It's also obvious that some DSL-ish thing is possible, something that just does token juggling and the end-user sees some UI behavior.

I know this all sounds abstract. I've been mulling over it for the past year and it's very hard; and LLMs are super janky and inconsistent so it's 100% not trivial. So in some sense I understand why a lazy bottom-of-the-barrel "chat interface" has become the de facto standard.

dvt··on How AI tool calling works (40 lines of vanilla JavaScript)
> I have seen people actually not get: that LLMs wrap tool calls in special tokens

This isn't necessarily true. I'm working on a local harness that doesn't do this and instead coerces everything to YAML (including tool calls) for better bucketing. Some models are indeed trained on the `<|tool_call>...<tool_call|>` token schema (or something similar—e.g. jinja), but it's vendor-specific and often times inconsistent (so you're constantly fixing calls or going back to the LLM).

dvt··on Ask HN: What are you working on? (September 2026)
I did a show HN & it didn't get much traffic, but I've been working on https://moral.games/. A kind of debate PvP game, where you try to convince an AI judge of a certain moral position given an ethical conundrum.

Was trying to combine AI with generative storytelling with a card game. It was a fun experiment. To play, you'll have to get a friend to queue up at the same time.

dvt··on Garry Tan wants US open-weight AI labs to 'distill' frontier models, too
> Inference is not being subsidized and in fact has pretty high margins.

I was referring to the "AI labs" here. Sam Altman himself conceded that OpenAI is losing money on the $200 subscription. Using open-weight/open-source models is indeed cheaper (and no reason for inference to be subsidized).

dvt··on Garry Tan wants US open-weight AI labs to 'distill' frontier models, too
I think OpenAI and Anthropic will go bust, or at least be scrapped for parts in the next 5 years or so. It's clear that the extreme cost used up for training is impossible to recoup, as inference is already being subsidized.

It's also clear that, as Tan indicates, open-weight models will be (and basically already are) just as good as frontier models. It's all about the harness, baby. We will have two main forks in the road, and two new industries created:

    - AI hardware (NVidia/Cerebras/etc.), the equivalent of Intel/AMD
    - AI software (harnesses, assistants, etc.) the equivalent of Microsoft/Apple
We already saw a glimmer of this with popularity of OpenClaw—the problem is that it's janky, hard to set up, inconsistent, and very hacker-esque. Imo "AI labs" will be a dying breed because there's no real money in the actual models if they get commoditized, which they already kind of are.
dvt··on Everyone should slow down AI development except for me
Obligatory "what's Lygma?" But in all seriousness, this AI doomerism has reached a comedic inflection point. A few years ago, GPT-2 was too dangerous to release, then some Google weirdo said Gemini had a soul or something, then Mythos-tier became a meme, then some kid quit and went on FOX News talking about Skynet, and now Amodei and Altman are both on the "we need to slow down" train again; this is after we've already been down that road and Claude was banned overseas; wait, actually is that ban still around? Honestly who gives a fuck at this point.

It's all theatre. OpenAI and Anthropic will most likely go bust—or, more realistically sold for parts—, and they absolutely should for stealing my (books I wrote, blog posts, etc.) and many others' intellectual property. We're reaching a point where models are becoming commodetized and I'm 100% convinced the next move will be a sort of "software layer" on top of these reasoning systems which will be the actual revolution. The model itself won't be that interesting anymore, it's all the work that goes around it that makes it worthwhile (kind of what computers and phones are today; chips are amazing, but the software is really the magic).

The only scary part is that the boomers in Congress might actually believe these nerds, but seeing how Big Tech approval ratings are grazing the levels of Big Tobacco in the 90s, I don't think we have much to worry about.

dvt··on Pandas Should Go Extinct
I've been saying this since using Databricks at a company almost a decade ago. Most folks do not need big data tools, and it's just so entrenched because everyone wanted to be a "big data" company and pandas was how you handled big data.
dvt··on Tao: Open math problems being non-renewably mined by AI
Your confident re-assertion still doesn't convince me, why do you think so?
dvt··on Tao: Open math problems being non-renewably mined by AI
> Mathematicians will be less likely to work on a problem if there is a solution

Yes, that is Tao's premise, I'm just not sure I buy it. Suppose an oracle existed which could answer any question truthfully. Let's ignore the mechanics of this for now, but it could say things like "the Riemann hypothesis is False" or whatever and we would take it as gospel.

Does this mean that we wouldn't have mathematicians or physicists or computer scientists or biologists anymore? I genuinely don't think so.

dvt··on Tao: Open math problems being non-renewably mined by AI
I'm with @nilesh on this one, and not exactly sure how merely the existence of a solution precludes the advancement of human knowledge. If a problem is "solved" (say, symbolically verified) without any insights gained, it doesn't seem very interesting to the profession.

Navier-Stokes is a bit different (because there's a prize attached, so "scooping" matters), but almost all interesting problems don't have any prizes attached.

dvt··on Show HN: Jigsaw Haiku
Very fun and great "tactile" experience. Fantastic job!
dvt··on AI Cold Showers
> People do not shut up about it once they’ve tried it, and come up with all sorts of whacky use cases for it.

Other than Twitter engagement baiting (which people have done w.r.t. every other new hyped up thing, whether it's drop shipping, SaaS, crypto, whatever), I really don't see this day-to-day.

> Best friend suggested I ask ChatGPT whether it’s cheaper to renovate or knock down a house I bought specifically to renovate it, which I’ve told him on multiple occasions.

I don't understand what this anecdote has to do with AI, it sounds like your friend is just a bad listener.

dvt··on AI Cold Showers
> perhaps most importantly on what makes humans, human

What makes humans human is love, laughter, community, children, art, beauty. How are LLMs even remotely a threat to this? The piece is so hyperbolic, it's just hard to take seriously

I really feel that the anti-AI crowd is becoming a weird religion, kind of like the crypto NFT crowd was a few years ago. Most people that use AI are just like "yeah whatever, it does X, Y or Z, sometimes it sucks and I have to re-prompt it, it's pretty neat."

While the anti-AI crowd is like "I PLEDGE TO NEVER USE AI, HERE IS MY BLOOD OATH." Like, calm down. It's not that big of a deal. Some of these bullet points are just straight-up nonsense.

> I won’t read AI summaries as a substitute for reading the source material with my own damn eyes.

Author is... just defining what a summary is. Yeah, no one looks at summaries as if they're the original text. Ever. What is he even saying here?

dvt··on Watch Los Angeles get built, one building at a time (1880–2026)
> What cool problems did you (not the robot) solve?

Building products has nothing to do with technical problems, just the end result. This is in contrast with things like writing a library or coming up with a new algorithm, or doing research, or even writing a technical blog post, etc.

> or is it just pretty?

People have been sharing "just pretty" things on HN for decades. It might be interesting, thought-provoking, discussion-worthy, or whatever. Even if this wasn't vibe-coded, it wouldn't be some monumental technical achievement. Your point is absolutely moot.

dvt··on Finder is so frustrating and has been since day one
> Computer folders are still organized in structures set up some 50 years ago. Operating systems change. Computers change. Search changes. But this has never changed. I can't change that.

And we've been using the Dewey Decimal System for like 150 years. Both are good systems. Kepter (a visual/gallery system) would break down when looking at more than a dozen files (or when files are very similar). I don't really think it's a good idea.

What we desperately need is a system-wide (or at least documents-wide) semantic/vector search, which is basically a weekend project and a $4.99 one-time purchase.

dvt··on Nitter and XCancel resume service after legal advice
This was tried with clubhouse and that kind of failed miserably. I think those days are likely over.
dvt··on A/I shuts down
> So unless you're willing to become a literal terrorist organization and die with a bunch of your friends in an uphill battle (not technically unwinnable, but at least lopsided and the casualties will be tremendous), the only option is to cave.

Honestly, the internet has made folks so lazy. It's very ironic that the most "revolutionary" act taken recently (January 6) was actually done by the far-right. Yeah: if you believe in something, you need to actually get out of the basement, grab a gun, and storm the Capitol. And if you take it all the way, a lot of people are going to die. That's how revolution works. Unless we're all LARPing?

But Americans/Westerners (left, right, center) are way too comfortable for a revolution, so for people that are, or have been, actual dissidents (think Arab Spring, or IRA, or ETA, or whatever), this is all just a big meme.

dvt··on LLMs as a Cognitive Virus
I just don't see that the main thrust of their argument, (oversimplified) "humans will become so dependent on AI, they'll become dumb," holds any water. I mean even from an evolutionary standpoint, intelligence is (by far) our most valuable competitive advantage. Arguing that "cognitive offloading" (their term) will have runaway effects is reaching to say the least.

It's like saying that moving from manual-labor-intensive agrarian societies to industrial ones will make us weak and meek. In fact, it's had the opposite effect: humans, on average, are healthier and live longer than ever in human history.

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