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joelthelion

4,607 karma · joined February 20, 2007

Creator of autojump: https://github.com/joelthelion/autojump I work in the field of medical image processing.
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joelthelion··on On caring for user data: NeoVim caused Vim undo files to be deleted
As a vim user, I feel neovim was useful for one thing: it shaked regular vim development a bit. That said, I see no reason to switch. Good old vim is rock solid and featureful. I hope it doesn't die due to neovim's competition.
joelthelion··on OpenAI GPT–6 Astra breaks Enigma message that has resisted solution since 2005
They seem to be better at solving concrete problems than designing new things (at least for now)
joelthelion··on NASA’s Mars Sample Return mission is dead
Could the Chinese mission just take the US samples without the US's permission?
joelthelion··on Astra and Fable still hack on simple variants of alignment evals from 2025
I've been wondering about this for a while. Maybe it doesn't work? Or maybe frontier labs just prioritize benchmark scores in spite of all their safety talk.
joelthelion··on So you want to use OpenRouter?
> Providers probably serve quantized versions without disclosing it

It should be OpenRouter's responsibility to protect you against it, by regularly benchmarking providers and giving you the control to avoid bad providers. In fact, that's a big opportunity for them, since it justifies their place as a middleman between users and inference providers.

joelthelion··on So you want to use OpenRouter?
Excellent post, thanks for the article. This is very relevant for anyone using openrouter and similar services seriously.

I feel there is still a lot of progress to be made before we can really trust LLM providers.

joelthelion··on Show HN: What if the speed of light was 5 km/h?
Why are the lamp posts blinking in a weird way?
joelthelion··on Git hosting that never leaves Europe
Is GitHub really better? If you're a small project, you could always migrate to something else if this guy disappoints.
joelthelion··on Go grandmaster Shin defeats AI KataGo with a two-stone handicap
That's exactly what I meant . LeelaKnightOdds is specifically trained for that, and it makes a world of difference.
joelthelion··on Which tools do Claude, Codex and Cursor choose? We measured 17k runs to find out
One issue is that models are only one part of the equation. Search is also extremely important, and for that you pretty much have to depend on a third-party service.
joelthelion··on Go grandmaster Shin defeats AI KataGo with a two-stone handicap
Is there an equivalent of LeelaKnightOdds for Go? That might be harder to tackle.
joelthelion··on Understanding ChatGPT Work
This is very cool, and at the same time, this is how they plan to lock people in. The moat isn't really in the models, it's in their users and how much they are invested in their ecosystem.

Once you have started working seriously with these tools, it stops being so easy to switch. What are the open-source alternatives to this? How usable are they for non-technical users?

Another comment I have about this is that unfortunately, there is always an LLM in the loop for each prompt. I feel LLMs should automate themselves away, meaning that for repetitive tasks, user prompts should go directly to deterministic, previously built scripts. This would be both a better user experience (more predictable), and a lot cheaper to operate.

joelthelion··on Hilariously fast volume computation with the divergence theorem (2018)
> calculating the volume of a prism-like polytope between it and its projection

There is the key insight that you don't need to explicitly compute this projection.

joelthelion··on GLM-5.3-Flash
As long as the weights are open, who cares? You can rely on someone else for inference.
joelthelion··on Omarchy development practices lead to predictable security issues
No offense but your title is not informative at all.
joelthelion··on FDA authorizes first wearable device that monitors ketone and blood sugar levels
High blood glucose causes a host of bad health issues even in non-diabetic people: visceral fat, liver fat, inflammation, cardiac disease... You don't need to wait to be diabetic to embrace good dietary habits, and a glucose monitor would go a long way helping people make that transition.
joelthelion··on Starbase, LA
I imagine they plan to rely on debt, which is the fashionable thing to do these days.

The wake up call might be difficult, for the whole country or even the whole world.

joelthelion··on FDA authorizes first wearable device that monitors ketone and blood sugar levels
Preventive medicine is a bit one. If your fitness watch could measure blood glucose, I think it would be a ton more impactful in terms of health outcomes.
joelthelion··on GrapheneOS in 2027 available on high-end Motorola phones
I'm pretty sure there is a lot of code in Android that belongs to Google and is not part of an upstream GPL project. They would be completely entitled to stop sharing it.
joelthelion··on Google has abandoned Google News?
This should be a golden opportunity for hackers like us to keep rebuilding this stuff and get bought.

A huge waste and completely demoralizing though.

joelthelion··on Launch HN: Prized (YC S26) – Let non-engineer staff build secure internal tools
You can reuse the app indefinitely, for cheap, and predictably. I would say these are huge advantages.
joelthelion··on Why Don't People Use Formal Methods?
I would say the tooling plays a part. Where are the go-to open source solution that a beginner can turn to without too much research?
joelthelion··on Kill The Cookie Banner
At this stage, it's easier to block them with uBlock and move on.

I don't have a lot of confidence for legislative solutions. Although I admire people who keep trying.

joelthelion··on Apple targets dozens of OpenAI employees with legal letters
> The real value is and going to be in hardware

Unless someone comes up with a brilliant optimization strategy or new hardware that renders all that inefficient Nvidia crap overnight.

joelthelion··on Weave Robotics launches Isaac 1, a $7,999 home robot with Fall 2026 deliveries
Privacy aside, who wouldn't want their $8,000 cloud device abruptly shut down when Weave Robotics decides to pivot?
joelthelion··on Weave Robotics launches Isaac 1, a $7,999 home robot with Fall 2026 deliveries
Do we have any evidence that Tesla is actually working on manufacturing millions of robots?
joelthelion··on Department of Commerce has lifted export controls on Claude Fable 5 and Mythos 5
I wouldn't be surprised if they had new models up their sleeve. Could be wrong of course.
joelthelion··on HackerRank open sourced its ATS. My resume scored 90/100. Oh wait 74. No – 88
> is just the next most likely token, taking into account temperature and what not.

This doesn't mean anything. All LLM output is like that.

That said, I agree that LLMs are terrible at grading stuff, except perhaps if you give them a very detailed evaluation grid.

joelthelion··on Codex logging bug may write TBs to local SSDs
A good moment to switch to an open solution like opencode or pi.
joelthelion··on Tesco moving 40k server workloads off VMware amid Broadcom's abusive conduct
Contrast one regulation vs. thousands of litigations by companies who don't always have the expertise or budget to pursue complex legal procedures.
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