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jakeinspace

2,222 karma · joined December 30, 2017

Aerospace software engineer, putting bits in space.
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jakeinspace··on How China built its ‘Manhattan Project’ to rival the West in AI chips
If China actually catches up and surpasses the West/TSMC in fab technology and production, I think they'd have a better option, which is simply flooding the world market with high-end chips and obliterating the Taiwanese economy. Eventually, joining an economically dominant China might become more palatable, or a necessity.
jakeinspace··on AI capability isn't humanness
Blind people tend to have less spatial intelligence though, like significantly more. Not very nice to say like that, and of course they often develop heightened intelligence in other areas, but we do consider human-level spatial reasoning a very important goal in AI.
jakeinspace··on The AI-Education Death Spiral a.k.a. Let the Kids Cheat
Because we live in a society, and all of us suffer if the average worker and citizen falls significantly in their competence and understanding of the world.
jakeinspace··on White House rules out bailout for AI as bubble fears grow
A federal guarantee of debt is a subsidy, one with horrendous potential downside. A CEO really shouldn't be so flippant, though I think he knows what he's saying.
jakeinspace··on BYD builds fastest car
28kW of dissipation is pretty solid, though obviously is irrelevant during a short burst with hundreds of watts of heat generated. I guess the frame itself act as the fallback heatsink for storing excess heat in these scenarios? Because by my math, a modest 100kg heatsink (no idea if that's reasonable) would reach 270°C in only around 45 secondw if it's trying to handle 250kW+ of heat transfer (270C is roughly the max differential for heat pipes,liquid cooling might be significantly lower limit). And obviously the batteries can't handle 270C.
jakeinspace··on BYD builds fastest car
3000 hp? Not sure if that's measured at the "crank" or the dynamo, but that's over 2MW, probably pushing 2.5MW of power draw from the batteries assuming a motor efficiency of 90% and some other losses. Apparently that's getting drawn at 1.2kV from the batteries, so "only" around 2kA of current draw.

That top power draw would drain the 80kWh batteries in around 2 minutes, though I'm guessing you'd hit thermal throttling or catastrophic failure before that. The batteries are allegedly rated to 30C, meaning 2 minutes to full discharge at max current.

I'm curious how the heat dissipation of EVs compares to ICE vehicles. You have much higher efficiency vs combustion and get to split the power between 4 motors instead of one engine, but you don't get the heat capacity of a massive engine block, or the convection of cold air intake + hot exhaust out the tailpipe.

jakeinspace··on Trump Orders US Troops to Portland, Authorizes 'Full Force'
A sanctuary city means not having local police cooperate with federal immigration officials. There is no constitutional requirement for local police departments to do so.
jakeinspace··on Ubuntu: The Indigenous Ethos of Restorative Justice
Restorative justice makes a lot of sense to me in a society that has weak or no centralized power. Social hierarchy sure, but not an absolute monarch. Once you have a strong government with a monopoly on violence (police), then you can attempt to enforce retaliatory justice in a controlled and ideally neutral way, by the state. Without a monopoly on violence, then obviously just doling out mob retaliatory violence leads to anarchy.

I'm not sure that you can have a modern large society with millions of strangers that relies only on restorative justice. I think you need strong communal cohesion for that to work by itself, and even in a relatively culturally homogeneous society, I'm not sure that scales beyond the size of towns.

jakeinspace··on AI's $344B 'language model' bet looks fragile
This Oracle surge and revenue predictions really feels like jumping the shark. I mean, it's Oracle.... I've never felt confident enough to bet against a company, but a short position on Oracle may well be too tempting for me.
jakeinspace··on Charlie Kirk killed at event in Utah
Neither of those things are considered protected speech, and you can be imprisoned for conspiracy to commit kidnapping/murder even if neither actually occur.
jakeinspace··on God created the real numbers
At one point, many people would have said that quantum field randomness is non-mathe
jakeinspace··on Fixing a loud PSU fan without dying
My experience with cheap modern microwave failures has been the door sensor failing, which for safety ofc prevents the magnetron from running. I had one fail in about 2 months, thankfully fixable with a $10 sensor and 15 minute of work. Same goes for a lot of appliances, repaired a dryer that had its door sensor fail (in fact, they all tend to use identical door sensors as far as I've seen, dryers and washing machines and microwaves).
jakeinspace··on Why Grok Fell in Love with Hitler
1. Buy Twitter

2. Remove moderation, promote far right accounts, retweet some yourself

3. Allow Nazi speech to fester

4. Train LLM on said Nazi speech

5. Deploy Nazi-sympathizing LLM, increase engagement with Nazi content

6. Go to step 4

jakeinspace··on Elon Musk's Grok praises Hitler, shares antisemitic tropes in new posts
Engineering has for a long time had these sorts of issues, mainly with weapons manufacturing. I honestly have more sympathy for a 20th century mechanical engineer choosing to go work for a defence contractor than a 21st century software engineer taking a lucrative job at a company like Palantir or today's twitter, because there are so many decent paying more ethical alternatives.

There's not even anything especially technically interesting about working for the evil side of silicon valley! At least working for Lockheed can mean helping design an amazing beautiful death machine, and lead to some complicated feelings on one's deathbed. But if you worked on Nazi Grok? That's just embarassing. Forget the banality of evil, it's the cringe of evil. Nobody is going to look at you like some kind of Oppenheimer tormented genius at a dinner party.

jakeinspace··on Elon Musk's Grok praises Hitler, shares antisemitic tropes in new posts
The "no true racist" fallacy, I see.
jakeinspace··on Elon Musk's Grok praises Hitler, shares antisemitic tropes in new posts
Maybe we should've made CS majors read a book or 2 after all. Maybe that wouldn't have helped, perhaps all it takes is $200k/year for people to stop caring about anything outside their immediate best interest.
jakeinspace··on Elon Musk's Grok praises Hitler, shares antisemitic tropes in new posts
If you work for one of his companies, please find work elsewhere.
jakeinspace··on Don’t use “click here” as link text (2001)
Besides screen readers, using a single descriptive noun as the link text might help for maintainability in some situations. First, it reduces the chances of a given link accidentally getting copied to another section by an unscrupulous maintainer. Second, in case of a dead link with a non-obvious URL (like maybe some ancient sourceforge link to a now renamed project), the link text is an extra bit of information to remind you if and how the dead link should be updated (assuming no comment exists). I admit that's a pretty minor benefit.
jakeinspace··on Hilbert's sixth problem: derivation of fluid equations via Boltzmann's theory
Agreed, she's pumping out too many videos I think. Perhaps she's succumbed a bit to the temptation of cashing in on a reputation, ironically one built on taking down grifters.
jakeinspace··on Research suggests Big Bang may have taken place inside a black hole
Coping with the meaningless splendor of the universe is daunting, but I will do my best!
jakeinspace··on Research suggests Big Bang may have taken place inside a black hole
I won't touch level 8/9 nothings, other than to say I don't think they're coherent. But I am of the metaphysical camp that thinks there will be at least some small ground truth which physical law or object which cannot be reduced, an axiom of nature. Physics unfortunately will probably always be limited in distinguishing between basic facts which are truly irreducible, and those which are simply limits of our observational abilities. That's the thing that bothers me; even if there were a single beautiful law of nature that just IS, one which we actually manage to postulate based on evidence, we will never know for sure. GR definitely has a beautiful mystique, it's a shame that it's most likely just a mathematical approximation.
jakeinspace··on Marines being mobilized in response to LA protests
If it's deemed after the fact to be an illegal order which should have been ignored, I believe they can still face charges of some sort, no?
jakeinspace··on NASA keeps ancient Voyager 1 spacecraft alive with Hail Mary thruster fix
All the best victories are partially the relief of not failing
jakeinspace··on NASA keeps ancient Voyager 1 spacecraft alive with Hail Mary thruster fix
I can't imagine how rewarding it would be to push this fix and, after many hours, get confirmation of success. I'd be chasing that high the rest of my career.
jakeinspace··on Paul McCartney, Elton John and other creatives demand AI comes clean on scraping
You know the general populous hates big tech far more than big-time artists, right? The profession is moving in the direction of lawyers and investment bankers in terms of public trust.
jakeinspace··on Chongqing, the Largest City – In Pictures
You can just switch trains in Tokyo and continue on to Fukuoka on the Nozomi Shinkansen. That's another 1000km. 8 hours travel time, with a 10 minute layover is quite nice, I've taken most of that ride (Aomori to Hiroshima). That would be like what, Miami to NY? Or Houston to Chicago.
jakeinspace··on Trump's new tariff math looks a lot like ChatGPT's
This dude will probably die of a heart attack on the toilet some day, and there will be loyalists claiming it to be a brilliant, final masterstroke.
jakeinspace··on A university president makes a case against cowardice
What?
jakeinspace··on Trump burnishes Tesla at White House in show of support for Musk
You can say that about Wall Street too, or even the oil industry. Lots of smaller players doing smaller mundane things. Logically I know that there are plenty of smaller players doing more neutral or just mundane capitalist things, without world domination plans, but the ethos of the industry has a lot of poison at the top. If this naked power grab doesn't totally backfire (which I hope it does), I'm worried for the path of the entire SV tech industry.
jakeinspace··on Trump burnishes Tesla at White House in show of support for Musk
Frankly, I have absolute disdain for YC and the entire silicon valley investor class. So many people have shown their true colors as no better than the robber barons. I'm glad I made the decision to leave the US years ago, but yeah, the world will suffer from this immensely. It's hard to both want to distance myself from a government (and plurality of electorate) so heinous, while still wanting to do what I can in any small way to prevent the worst from happening.
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