[-] swicano@programming.dev 1 points 1 day ago

This game kinda just feels like an initial guess and then a binary search, like I'm not really doing anything with the actual color after the first guess, especially with the less significant digit

[-] swicano@programming.dev 3 points 1 day ago

I'll add one more perspective: git is the "right" way to do it, but I'm a lazy forgetful person who wants to work on the laptop but the changes on the desktop aren't committed or pushed remote. What I often do is to use VScode's remote development tools to open a remote connection the last computer with uncommitted changes, and work like that. If I'm headed out, I'll use the remote connection to commit the code so I can access it off my home network via codeberg.org.

Occasionally if I'm already out, I've even used "raspberry pi connect" to remote onto my network, then ssh over to my desktop, then commit and push. Don't do that though. That'd be irresponsible.

[-] swicano@programming.dev 2 points 1 day ago* (last edited 1 day ago)

If your argument was one of cost, you should have said so from the start! Economically, it might or might not make sense. I can't pretend to know the economics of running a space based datacenter, I've never run a ground based datacenter.

But you have been arguing about power and electricity and heat and how proud you are to have 200a service at your house (congrats on owning it, btw, tough nowadays) but those aren't the dealbreakers. If the AI bros want to lose billions putting the datacenters in space, I don't have a huge problem with that. Better that than diddling kids and destroying society, which is what they seem to be spending their money on now.

[-] swicano@programming.dev 2 points 2 days ago

You don't use 48 kW you have 48kW capacity, that'd be 33 (1500W) electric space heaters running nonstop 24/7. I have electric heat, electric oven/range, and an electric car and I averaged 3 kW across the last week. (406 kWh between the 26th and 1st)

A comparison that is reasonable is an h100 rack cluster like this which uses about 60 kW per rack. For input power, the newer iROSA solar panels generate about 20 kW at a size of 20ft x 60ft each. Throw in 4 of those radiators, and you have something that is feasible to throw into space. Again, I can't judge the economics of launching and running a space based datacenter business, but you could absolutely launch and operate a space rack with current tech.

[-] swicano@programming.dev 2 points 2 days ago

Oh sorry I should have been more specific. 996.84 BTU per gallon freezing water. Approximately. If your tap has a few more brits in it that's probably OK, too.

[-] swicano@programming.dev 17 points 3 days ago* (last edited 3 days ago)

The hint that the dog can't spell is in the second panel

[-] swicano@programming.dev 3 points 3 days ago

I could have seen the opposite, too, where xAI pays spaceX gobs of money for tons of datacenter launches in advance, bubble pops, xAI goes under and spaceX still has the money. But ya I think this is "the govt won't let spaceX fail, pile all the riskiest shit into that"

[-] swicano@programming.dev 4 points 3 days ago

That was my stumbling block, too. Don't think of it as taking a datacenter and putting it into space whole, think of it as taking 5 or 10 racks and putting that into space, and repeating till you have as much compute as a datacenter. So it's basically the size of a schoolbus (same size as hubble telescope) and it has solar panels+ heat rejection like those of the ISS, and then bolt a starlink on the end, and you can put as many of those in orbit as you need.

Each part of the hardware is doable(ish), and if the nerds who actually run datacenters say the terrestrial energy/cooling cost numbers vs launch cost numbers make sense, I'm inclined to believe them even if I don't get to see that math specifically. But right now it's just AI bros saying the costs make sense, and I don't as much believe them.

[-] swicano@programming.dev 5 points 3 days ago

I used to think space data centers was a scam, but I learned how much power existing satellites already use (and thus must be able to radiate into space to keep cold), and just looking at the ISS, each radiator (and it has several) can reject 14 kW into space, so if the ISS has can safely generate 14 kW of electricity and reject all the waste heat, then the major concern for me is addressed. Space datacenters are the first step to industry, in space, which is an necessary step for a lot of future stuff.

All the above is beyond the point though, he's playing shell games to tie his most valuable and critical company, SpaceX, to the trashheap of AI bullshit so that the government will bail him out when it crashes.

[-] swicano@programming.dev 3 points 3 days ago

I don't have a V60, but my bonavita drip machine has a clear plastic window that has tiny cracks like that, but only exactly where the hot steam escapes between the dripper and the shower head, so I suspect we both have heat fractures from thermal shock. For me at least, it still is watertight so I'm not worried about it too much. Yours looks like it might be soon losing structural integrity.

I would stop preheating with boiling water straight from cold, can you first heat it with hot tap water for 30 seconds or so? Might reduce the thermal shocks if it's already at 120 instead of room temp

[-] swicano@programming.dev 5 points 3 days ago

Whew, by chance i bought 2 16gb pi5s to do some long-planned builds 3 days ago at the old price. Feeling very lucky right now.

I tried to find the price trend for lpddr4, but it's clear that even at launch prices, ram has been the largest single component cost, since the 16gb launched at $120 while the 2 gb launched at $50, so that extra ram was always a premium. The prices for all (except 1 gb skus) increase about $4 per GB of ram, thats tough.

[-] swicano@programming.dev 6 points 5 days ago* (last edited 5 days ago)

Get one of these Eink frames from waveshare. I have an older version without wifi, so i have to run a python script to e-inkify images on my laptop, copy to the SD card, put it into the frame, but the linked one doesn't need that.

Since pi zero 2w is just a linux box, you can ssh into from remote and add/remove images from the folder that the screen shuffles through. Heck you could set up an cron job for the pi to hop onto your network and sync a folder on the nas.

And you can ignore the AI thing on this if you want, it's a neat side thing, not integrated to the display functionality code.

Edit. Oh I didn't see you wanted very large like 16 inch, I think big eink panels are outrageously expensive still

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swicano

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