Toutouxc

4,459 karmajoined 6년 전

I work on document automation in Prague, Czech Republic.

To contact me, put the word "mail" before the "at sign" and append my username and then a dotcom tld.

comments

3일 전discuss

> if in the future there's a prompt specific language, it would be committed. I dont think we've reached there yet, but i dont doubt this is on the path to the future

You mean, like a ... programming language? Honestly I can't tell these days what is satire and what isn't.

4일 전discuss

IMO delegation isn't abstraction.

I work at a certain level, like Ruby code. That's what I write, debug and maintain. I don't really care about the internals of the interpreter or about the source code of Linux, because these layers are taken care of, they're reliable and they're being developed by competent people. I [think I] know what Ruby code should look like in order to remain [reasonably] fast, maintainable and reliable, and it's my job to build a product out of that kind of code. If I keep writing code like that, I know for sure that I'll be able to keep building the product, because the layers underneath are deterministic. It's like the certificate chain of trust, but with "surely these people are not idiots". And that's simply not the case with LLMs.

Not only can the LLM be a massive idiot, but also an unpredictable one. I can try to warn it, steer it, police it or review as much as you ask me to, but ultimately you're asking me to delegate my job and my responsibilities to an intermediate whose reasoning I don't understand, who has no loyalty, no sense of pride, no sense of ethics, can't be taught and can't be fired.

4일 전discuss

Two 18650s hold about 22Wh of energy, more than two iPhones, and 20x more than what the parent comment is talking about.

5일 전discuss

Wider architectural guidelines, yes. "How a senior developer in this company would do it" — not so much.

7일 전discuss

My understanding is that this is still an unsolved problem. At some point you lose touch with the code and you start working with a mental model that’s subtly inaccurate. You just sort of hope that the people below have are competent and are building stuff that matches your mental model (that you’re communicating well!).

7일 전discuss

For me, the issue is that the model can explain what the code IS, not what it’s supposed to be or aspiring to be. The code doesn’t explain the original constraints (because it already fits within them) and it doesn’t show the tried and discarded approaches. It’s like rewriting a MIDI roll back into sheet music. Or better, it’s like the difference between being the author of an opera, and having read reviews of it.

7일 전discuss

> Fable is better than most staff engineers at my FAANG.

That’s genuinely disturbing.

9일 전discuss

The very first image at the very top of the MultiAir article shows, prominently, a camshaft and the cams used to actuate the valves.

9일 전discuss

Fun thing about the sodium filled valves — these are also used in cars. The engine in my previous econobox, a 3-cylinder 1.0 TSI (EA211) uses them in the 81 kW variant.

9일 전discuss

I don’t think it’s pretty well established, there are cars that will happily stop and start the engine multiple times per minute, e.g. Toyota hybrids with their “HSD” drivetrain. It just requires some engineering.

9일 전discuss

You’re replying to a post that says that “explosion” doesn’t imply “detonation”.

9일 전discuss

Not exactly. You do want a deflagration and not a detonation, but "explosion" is more loosely defined and, depending on who you're talking to, a self-sustaining subsonic flame front and a sharp pressure spike are a perfectly valid explosion.

9일 전discuss

Note that that sentence is talking about the crankshaft bearings and their hydrodynamic lubrication, which is, well, elsewhere and separate from any cam rattle issues (including the cam phaser oil starvation that you might be referring to).

9일 전discuss

You might be misreading the animation. It's a direct injection engine, the thing that happens during the compression stroke is fuel injection. Ignition happens a few degrees before TDC, which is realistic.

13일 전discuss

Claude does that too. “That always confuses me” or “I usually realize”.

Not only do these imply that the thing has a personality and preference, but also continuity and a life outside the chat window.

I had to add an explicit instruction not to impersonate a human, it was just too weird for me.

14일 전discuss

That’s not what they said. The game does work without mods, but the economy is weirdly nonsensical (AFAIK you can push unnecessary amounts of cargo over long distances, and the game rewards you anyway) and I personally find it kind of pointless, compared to something like Transport Fever 2.

16일 전discuss

If anyone else is disappointed by the terrible AI slop article: It's about a fully liquid cooled data center design.

The usual way to cool servers is with air and heatsinks attached to the hot hardware, similar to how your desktop computer or laptop works. As the hardware gets denser and more powerful, you need bigger and bigger heatsinks and cooler air blown over them. At some point you can't make the heatsinks bigger because of space constraints, and you can't blow the air faster (because of noise and efficiency), so you need cooler air. That's when you start running chillers that evaporate water to cool your intake air. This is the huge water consumption that we'd like to avoid.

The next step is, obviously, liquid cooling. Again, this is similar to your fancy gaming desktop. You can dump a lot of heat to a liquid medium through a small heat exchanger inside, where you're space constrained, and you can run the liquid through a gigantic heat exchanger outside, despite the temp delta between your coolant and outside air being pretty small.

This article is about a system that's FULLY liquid cooled — CPUs, GPUs, memory, networking, the whole thing. That's the actual cool part (pun unintended). On top of that, their solution is optimized to be able to run the coolant quite warm — this obviously limits the heat flux at the hardware side, but it allows you to run the outside heat exchangers "dry", i.e. without wasting any water for its latent heat.

21일 전discuss

Rivian barely exists. Their market share is a rounding error. Škoda Enyaq (yes, the one model) is outselling Rivian, the entire company, by a factor of two.

22일 전discuss

> I get it, Tesla has a bad omen for some who mingle deep in far left

That doesn’t sound like you get it at all.

23일 전discuss

It took me quite a while to figure out what the article is about. These don’t seem to exist over here.