zlacker

AI data-centers use upwards of 100MW. The biggest solar panels in space could produce around 240KW. When they speak of AI data-centers in space what do they actually mean in realistic non theoretical terms and where are the materials for this coming from?

If the AI data-center used only 10MW then each could have two redundant SMR's assuming the cooling challenges have been worked out but then we could have nuclear reactor disposal and collision issues.

>>Bender+(OP)
I assume the idea is to have the entire constellation be the data center in question. Laser back haul transceiver bandwidth is in the same order of magnitude of rack-to-rack bandwidths [1][2]. I could see each sat being a rack and the entire mesh being a cluster.

[1] https://hackaday.com/2024/02/05/starlinks-inter-satellite-la... (and this is two years ago!) [2] https://resources.nvidia.com/en-us-accelerated-networking-re...

>>shetay+Cb
This is how Starlink works however, you would need orders of magnitude more compute than those router pucks. Orders of magnitude more power needs unless you combined a nuclear reactor to it. It’s just such a fever dream at this stage that he’s really doing it to muddy accounting and consolidate debts from Grok failures.

>>Bender+(OP)
This is the thing I don’t get. Everyone talking about the “how” but nobody talking about the “why”? It makes literally no sense.

>>vitafl+xt
The only thing that keeps bouncing around in my thick skull is something "data-center sized" whatever that means to them could hold some interesting objects. 2 Peta Watt laser, Rods from God, Tactical nukes, Miniature Rail-gun to quickly eradicate other satellites, Off-Planet archives of stuff, Doomsday clusters of brainwave transmitters to shut off all the humans or force everyone to defecate at once.

Those are just some guesses. Some of those could also explain the "why" for SpaceX Falcon Heavy and it's future iterations. It can carry 63,800 kg (140,660 lbs) to Low Earth Orbit and that load capacity will only increase with future versions.

>>vitafl+xt
Snake oil, like bitcoin.

A lot of people will invest in this because "it's the future" and a few will make a lot of money on that.

>>vitafl+xt
Because people have to compete just to have sand doing math for us? The why is that it's high time we stop worrying about how much compute we have. Certainly filling all solid planets in the solar system with computers is not nearly enough computation as we want (I'm not even talking about AI specifically).

>>shetay+Cb
For AI training, latency is one of the limiting factors, which needs to be kept in the nanoseconds. And a light-nanosecond is famously almost exactly 1 foot.

That's why Lumen/Starcloud's designs all assume it'll be a space station with all containers connected to one central networking spine.