foota

I think you're misunderstanding the tank's temperature. The internal temperature is 32C, the external temperature is only 16C (they used thermal cameras to measure the external temp, but when they got closer they read the internal gauge which showed 32C). Groundwater in LA is apparently right around 16C, so the difference in temperature between the tank and the water would be basically 0.

So while I do agree that the evaporative cooling is probably doing most of the heavy lifting (in fact, necessarily so if the water temp ~= the tank's exterior temp), it's not unreasonable to suggest that using colder water would be more effective.

In fact, the wet bulb temperature there is apparently right around 16C, so they've basically cooled the outside of the tank as much as they can using evaporative cooling alone. They can certainly use it to _keep_ it there, but without something else they wouldn't be able to cool it further.

Presumably if there's an exothermic reaction happening internally then the core will continue to rise in temperature based on the temperature gradient through the material forming in the tank. I would assume (since my understanding is that it's some kind of plastic) that it has a fairly low thermal conductivity, so the core temperature will continue to rise as more of it turns to plastic even as the outside is cooled to the same ~16C.

In the limit if they were able to immerse it completely in very cold water (~0C) then the exterior of the tank would also be ~0C (supposing they were able to access sufficient quantities of water). I don't think that's practical of course, but again I don't think it's unreasonable to suggest that cold water would make a meaningful difference.

Yeah that's fair. It does make me wonder what there is that would allow this. Maybe importing some snow machines from Tahoe? :-)

I'm actually a little surprised that a quick search for "refrigerated liquid transport" didn't turn up anything. I would have sort of thought this was something that would exist (just because there are so many random things that are necessary for _some purpose_).

Heat exchange is proportional to the difference in temperature though (in reference to your "or heat exchange"). Colder water would cool faster. The tank isn't at boiling either, so it's not like you'll be able to phase change away a bunch of energy. I guess you'll still get some evaporative cooling, but there's a limit to how much you'll get just from the ambient temperature (the exterior of the tank is relatively cool, presumably because the "gummed up" interior is inhibiting heat transfer)

Ah, that makes sense. It's too bad they can't drill into it to relieve pressure without destroying the integrity of the tank (not that I'd want to be anywhere close to it either).

If they didn't have to worry about it imminently exploding I wonder if they could somehow wrap it with reinforcement (e.g., wrap some high strength metal around the tank to prevent it from deforming when drilled into) and then drill into it to extract the liquid?

One of my other less serious ideas was to helilift a Chernobyl style containment structure around it, but I imagine they don't have one of those just sitting around waiting to be used.

They are not. I said ice cold. I read this article and several other articles about this.

Is it not possible for them to just... spray it with ice cold water?

I was thinking about this just the other day!! Frequently I find myself wanting to interleave thoughts in a conversation, this is the natural way to do so. I just wasn't sure how you'd train it.

They should feed it the classification of finite simple groups and get it to simplify it/turn it more constructive.

Sure, I'm frustrated by the github outages too, but hacking into github to fix their code seems like a bit of an overreaction.

Smells to me like they didn't implement compaction/went past their context window and the system prompt dropped off the end.

I would love to have some real application that needs an FPGA :) Someday perhaps.

Ah, I didn't know that existed. TIL

One wonders if someday we might be able to resurrect the neural network from dead cells by somehow reviving the connections between neurons. I imagine that the connections stay, but become dormant when the neuron dies.

I've generally assumed that AI would make developers get lower compensation because of the lowered quantity of developers required for the same output, but this raises the possibility of it actually increasing if more developers end up doing their own things instead of entering the broader labor market :)

Imo the main benefit of AI is allowing faster experimentation and more parallelism, as well as faster iteration.

Shouldn't there be a feedback system here preventing the scheduling of loads when cooling is degraded?

I wonder if this is in response to the chrome incognito lawsuit.

cries I am sad at all of the cool designs that would work with optane if it had been widely adopted. We desperately need more points on the latency/cost per GB curve.

This doesn't math out to me just based on what I know of energy consumption numbers.

"is duplicated by" is amusing.

While I largely agree, it does raise the prospect of testing this iteratively. E.g., give a model some fake environment, prompt it random things until it does something "bad" in your fake environment, and then fix whatever it claims led to its taking that action.

If you can do this and reliably reduce the rate at which it does bad things, then you could reasonably claim that it is aware of meaningful introspection.

Yes, sort of. Generally you can measure the pass rate on a benchmark given a fixed compute budget. A sufficiently smart model can hit a high pass rate with fewer tokens/compute. Check out the cost efficiency on https://artificialanalysis.ai/ (say this posted here the other day, pretty neat charts!)

> On April 16, we added a system prompt instruction to reduce verbosity. In combination with other prompt changes, it hurt coding quality, and was reverted on April 20. This impacted Sonnet 4.6, Opus 4.6, and Opus 4.7.

Claude caveman in the system prompt confirmed?

I found this while looking for a solution for more easily removing some unsafe code from a library that does a lot of C FFI. I didn't end up going with it though, for now I'm taking an approach of mapping valid pointers that I return to the caller and then validating that pointers passed to my library functions are in that valid mapping (and then also using that valid mapping to contain some additional information that doesn't fit in the ABI of the structs that the pointers are for that I use to safely do validation. So e.g., I can store the range of some other valid member pointers as a normal safe rust reference and then index into it with member pointers on the struct, completely avoiding unsafe code despite having this FFI boundary (obviously the FFI boundary itself is still unsafe, but I can take this ugly C struct with a bunch of raw pointers and handle it safely)).

That's curxed

It was admittedly a bit sloppy. The more accurate version (IANAKSPP, I am not a kerbal space program player) would be that the only way to maintain a satelite in one position (without expending an infeasible amount of energy) is to position it above the equator and sync its speed with the Earth's rotation, allowing it to stay in a single position above the Earth. Satelites always have to be moving fast enough such that the centripetal force is sufficient to counteract the Earth's gravitational pull, otherwise they would fall back onto the planet.

I don't believe parent is right, but satelites don't stay in one place unless they're on the equator, because otherwise they have to be moving. This means that you need many satelites to maintain coverage of a single spot.

I don't know how many military satelites China has, but I would have assumed it would be sufficient to cover the pacific sufficiently to find an aircraft carrier. (the obvious caveat here being clouds, which are fairly common over the ocean)

Yeah this wasn't something like "I want to debug a program" but rather I wanted to be able to track mmaping for later cleanup.

Fortunately libc doesn't mmap that much internally so I think I can get away alright with interposing lib's mmap call.

Fun fact, overwatch must have done a similar things because they would let you play back games up until some release when you could no longer replay them unless you'd saved the render.

I think if I remember right there were also funny moments where things didn't look right after patches?

Hah, I've been looking into something amusingly similar to track mmap syscalls for a process :)