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casualscience commented on Leaving Meta and PyTorch   soumith.ch/blog/2025-11-0... · Posted by u/saikatsg
jeffreysmith · a month ago
I'm one of the many people who Soumith hired to Meta and PyTorch. I had the privilege of working on PyTorch with him and lots of the folks on this post.

As his longtime colleague, the one thing I would want people to know about him and this decision is that Soumith has always viewed PyTorch as a community project. He consistently celebrated the contributions of his co-creators Adam and Sam, and he extended the same view towards the Yangqing and the Caffe2 crew that we merged into PyTorch. At the very beginning, by Soumith's highly intentional design, PyTorch was aimed at being truly developed by and for the AI research community and for many years that was the key way in which we grew the framework, FB PT team, and the wider community. At every single stage of PT's lifecycle, he always ensured that our conception of PT and its community grew to include and celebrate the new people and organizations growing what was possible with PT. He's an incredible talent magnet, and thus more and more smart people kept dedicating their blood, sweat, and tears to making PT bigger and better for more people.

I've worked with some very well known and highly compensated leaders in tech, but *no one* has done the job he has done with ameliorating a bus factor problem with his baby. PT has a unique level of broad support that few other open source technology can reach. In a world of unbounded AI salaries, people who want to move AI research methods forward still freely give their time and attention to PyTorch and its ecosystem. It's the great lever of this era of AI that is moving the world, *due in large part* to the strength of the community he fostered and can now let continue without his direct involvement.

His departure is the end of an era, but it's also operationally a true non-event. PyTorch is going strong and can afford to let one of its creators retire from stewardship. This is precisely what success looks like in open source software.

He deserves our congratulations and our thanks. Enjoy your PT retirement, man.

casualscience · a month ago
Also worked with Soumith. The man is a legend, moves mountains and completely changed the course of my career because he liked something I wrote. No arrogance, no politics, just an extremely down to earth and chill guy who elevates everyone around him.

Hope him the best!

casualscience commented on Apple will phase out Rosetta 2 in macOS 28   developer.apple.com/docum... · Posted by u/summarity
cwzwarich · 2 months ago
My reasons for leaving Apple had nothing to do with this decision. I was already no longer working on Rosetta 2 in a day-to-day capacity, although I would still frequently chat with the team and give input on future directions.
casualscience · 2 months ago
Just went through that thread, I can't believe this wasn't a team of like 20 people.

It's crazy to me that apple would put one guy on a project this important. At my company (another faang), I would have the ceo asking me for updates and roadmaps and everything. I know that stuff slows me down, but even without that, I don't think I could ever do something like this... I feel like I do when I watch guitar youtubers, just terrible

I hope you were at least compensated like a team of 20 engineers :P

casualscience commented on GPT-5   openai.com/gpt-5/... · Posted by u/rd
rcxdude · 4 months ago
It's both that simple and not. Because it's also true that the wing's shape creates a pressure differential and that's what produce lift. And the pressure differential causes the momentum transfer to the wing, the opposing force to the wing's lift creates the momentum transfer, and pressure difference also causes the change in speed and vice-versa. You can create many correct (and many more incorrect) straightforward stories about the path to lift but in reality cause and effect are not so straightforward and I think it's misleading to go "well this story is the one true simple story".
casualscience · 4 months ago
How can you create a 'pressure differential' without deflecting some of the air away? At the end of the day, if the aircraft is moving up, it needs to be throwing something down to counteract gravity. If there is some pressure differential that you can observe, that's nice, but you can't get away from momentum conservation.
casualscience commented on GPT-5   openai.com/gpt-5/... · Posted by u/rd
rtkwe · 4 months ago
It's both lower pressure above the wing (~20% of lift) and the reaction force from pushing air down (give or take the remaining 80% of lift). The main wrong thing is that the air travels faster because it has to travel farther causing the air to accelerate causing the lower pressure that's double plus wrong. It's a weird old misunderstanding that gets repeated over and over because it's a neat connection to attach to the Bernoulli Principal when it's being explained to children.
casualscience · 4 months ago
How can you create a pocket of 'lower pressure' without deflecting some of the air away? At the end of the day, if the aircraft is moving up, it needs to be throwing something down to counteract gravity.
casualscience commented on Erythritol linked to brain cell damage and stroke risk   sciencedaily.com/releases... · Posted by u/OutOfHere
duffpkg · 5 months ago
This is a study done on cell cultures. It should NOT be used to influence behaviors regarding human health. The article linked makes a lot of leaps not supported by the study itself.

Link to actual study: https://journals.physiology.org/doi/full/10.1152/japplphysio...

casualscience · 5 months ago
This sounds like a smart comment, but the main reason you shouldn't take in vitro studies as indicative of real medical outcomes is largely due to unknown bio availability when consuming realistic doses. However, this study shows that the concentration of erithritol is well above the concentration where they see negative effects in vitro when consuming a realistic dose.

In addition epidemiological studies have found associations between higher plasma erythritol and clotting/cardiovascular events. So, regular disclaimers about difficulty of establishing health science aside, I would disagree this should 'not influence behaviors'.

casualscience commented on Erythritol linked to brain cell damage and stroke risk   sciencedaily.com/releases... · Posted by u/OutOfHere
MichealCodes · 5 months ago
I've consumed large amounts of erythritol for probably 10+ years. What should I watch for? Blood pressure?
casualscience · 5 months ago
blood clots: https://www.nature.com/articles/s41591-023-02223-9.

Evidence in vitro suggests enhanced platelet activity. Plasma levels of erythritol are sustained for >2d above thresholds associated with platelet hyper-reactivity after consumption of realistic doses.

I use artificial sweeteners, but prefer sucralose or anything else to erythritol. I actually don't understand why people still use it (often in 'health food' because it's seen as 'natural'), there are much safer options.

casualscience commented on Sam Altman Slams Meta’s AI Talent Poaching: 'Missionaries Will Beat Mercenaries'   wired.com/story/sam-altma... · Posted by u/spenvo
ponector · 6 months ago
That is just an act of corpo-ceo bulshitting employees and press about high moral standards, mission, etc. Don't trust any of his words.
casualscience · 6 months ago
yeah, I used to work in the medical tech space, they love to tell you how much you should be in it for the mission and that's why your pay is 1/3 what you could make at FAANG... of course, when it came to our sick customers, they need to pay market rates.
casualscience commented on How to negotiate your salary package   complexsystemspodcast.com... · Posted by u/surprisetalk
rednafi · 6 months ago
This is my experience too. All these LLMs and agents are great for bootstrapping projects faster than ever. They help immensely with bringing down the activation energy. So I do a lot more tinkering around in multiple languages that I wouldn’t have otherwise.

That said, once the project goes beyond a certain threshold, LLMs offer little more than a highly capable autocomplete. In larger codebases, the current context window is too small for the tools to even answer questions properly, let alone make any non-trivial changes.

Productivity starts going down once you try to use LLMs in a large codebase and expect them to be as helpful as they were in a smaller one. Often, these authoritative little shits will whirl you around in a doom loop and still won’t find any useful solution. And suddenly you find yourself having to clean up the mess.

I’d still say the productivity benefit is positive, but at the same time, the hype around these is bonkers. Employers are holding onto the hype cycle to bring down wages through FUD.

casualscience · 6 months ago
You need to setup the problem for the llm. If I am getting an error, I can normally piece together the 10k lines of relevant code much more quickly than I can track down the bug.

Llms are still a big speed boost there

casualscience commented on OpenAI slams court order to save all ChatGPT logs, including deleted chats   arstechnica.com/tech-poli... · Posted by u/ColinWright
TOMDM · 7 months ago
Does this effect ChatGPT API usage via Azure?
casualscience · 7 months ago
probably not? MS deploys those models themselves, they don't go to OAI at all
casualscience commented on The ‘white-collar bloodbath’ is all part of the AI hype machine   cnn.com/2025/05/30/busine... · Posted by u/lwo32k
kaibee · 7 months ago
Has the amount of 95%+ reviews games-released increased though? And how much of that is due to the pandemic? Its anecdotal, but the game-dev discord I'm in has had a decent reduction in # of regulars since the tail end of the pandemic 24-25. And ironically, I was one of them until recently. I think people actually just had more time.
casualscience · 7 months ago
95 is a pretty random cutoff. But you can see for yourself the number of 65%, 75%,85%,90% positively reviewed games has increased similarly: https://steamdb.info/instantsearch/?refinementList%5Btags%5D...

u/casualscience

KarmaCake day155July 25, 2023View Original