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this is not a good study. it says that most cannabis use occured when young, and they then measure brains and cognitive test performance when older

this feels like reading tea leaves


by my calculations, the heat dissipation isn't that big a deal

take an h100 for example. it will need something like 1kW to operate. that's less than 4 square meters of solar panel

at 70C, a reasonable temp for H100, a 4 square meter radiator can emit north of 2kW of energy into deep space

seems to me like a 2x2x2 cube could house an H100 in space

perhaps I'm missing something?


Heat travels when there is a thermal gradient. What thermally superconducting material are you going to make your cube out of that the surface temperature is exactly the same as the core temperature? If you don't have one, then to keep the h100 at 70c, the radiators have to be colder. How much more radiator area do you need then?

Have you considered the effects of insolation? Sunlight heats things too.

How efficient is your power supply and how much waste heat is generated delivering 1kW you your h100?

How do you move data between the ground and your satellite? How much power does that take?

If it's in LEO, how many thermal cycles can your h100 survive? If it's not in LEO, go back to the previous question and add an order of magnitude.

I could go on, but honestly those details - while individually solvable - don't matter because there is no world where you would not be better off taking the exact same h100 and installing it somewhere on the ground instead


h100 can operate at 80-90C continuously, so 70C seems conservative

I'm not advocating for space GPUs as a logical next step. so many unsolved problems remain

point is that launch costs per kg are a more realistic blocker than cooling


The typical GPU cloud machine will have 8 H100s in a box. I didnt check your math but if a single machine needs 32 square meter radiator, 200 machines will probably be the size comparable to the ISS.

How much does it cost to launch just the mass of something that big?

Do you see how unrealistic this is?

Given that budget, I can bundle in a SMR nuclear reactor and still have change left.


my point is that cooling is not the problem, launch cost per kg is

current environmental regulations act to slow progress on solar power installation

we should either delete the regulations, or add exemptions for the infrastructure we need to build to avoid climate disaster

this is a time sensitive issue for our environment. every day spent debating regulatory nuance is a day wasted

at this point I prefer drastic decisive action over continued inaction: delete the regulations and re-introduce them


that's like building an API with no customers -- rarely a good idea

i use codex cli. work on giving it useful skills. work on the other instruction files. take Karpathy tips around testing and declarativeness

use many simultaneously, and bounce between them to unblock them as needed

build good tools and tests. you will soon learn all the things you did manually -- script them all


why would that change anything? copyright is still a tax on the whole of society for the benefit of rich people and corporations. it opposes innovation, evolution and progress

maybe a short copyright would be fine (10 year fixed?) but copyright as-is seems indefensible to me


> copyright is still a tax on the whole of society for the benefit of rich people and corporations. it opposes innovation, evolution and progress

The original reason for copyright, patents, and trademarks made sense.

We want people to create and share. And unlike the old guild solutions from Europe, copyright and patents were a tradeoff to encourage the arts and science.

But what's a good tradeoff? Thats a big copyright question. 17 years? 34 years? Life of author? 75 years? How about individual non-commercial use? Or abandoned works?

And patents aren't even in scope, but we see similar abuses against the raison d'etra of them. Patents were supposed to entail a full reproduction of invention. Now, its a game of how incomplete can we make the filing while still getting protection. Or worse yet, really dumb shit has been patented like 1 click or the XOR patent, or that asshole Chakrabarty who patented living organisms.

There were good reasons for a fair copyright and patent law for furtherance of the art and sciences. That narrative was lost long ago. Now, only the violators can really push ahead. And they can't talk about it.

(Trademark law has never really had much complaints, aside trademarking a color. If you buy from XYZ company, you want to buy from them, not a counterfeit. And it relates back to coats of arms, again, representing a family or a charge.)


labelling a person as "bad" is usually black and white thinking. it's too reductive, most people are both good and bad

> because they know they can get away with it

the point is that the paved paths lead to bad behavior

well designed systems make it easy to do good

> Exactly the opposite is taught.

"trained" doesn't mean "taught". most things are learned but not taught


waymo is also a probabilistic deep learning system


are there examples of jobs going obsolete being a net harm to society, over a long time scale?

surely it's good to reduce the amount of menial labour being performed in the world


Midwives were replaced by the male-dominated medical industry, which initially raised infant mortality, nevermind women losing autonomy over birth.

Night soil collectors were replaced by partial sewage systems, which resulted in cholera and typhoid outbreaks.

Local butchers were replaced by meat packing plants. The Jungle tells us why this didn't go so well either.

In all three of those cases, we rushed to an incomplete solution before it was fully ready. In this case though, no one's banning humans from driving cars anytime soon, so that part of it will go okay.


The loss of manufacturing jobs and the movement of jobs in to services has been hard for the US, and is basically where MAGA came from, which I would say is a net harm to society. We wouldn't be arguing about Waymo right now if those Uber drivers had better jobs making things instead of being forced into gig work.


in a waymo there are fewer parties involved. this should make you feel more confident in getting the bill paid, and knowing who will pay it


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