4,396 karma · joined June 28, 2020
I don't eat at McDonalds. My friends don't eat at McDonalds. The McDonalds is so bad where we live kids don't like McDonalds because the food is bad even as far as fast food standards go.
It is also why they are valuing themselves so high. They need it to be that high. To return value to shareholders.
It is hard to justify using inferior domestic technology when perfectly good, proven ASML tech is available.
SpaceX also painted a pretty rosey picture of their financials, but when they filed for IPO it became clear they were doing some real cherry picking and in actuality they were losing a ton of money.
If they really were doing so well they would file publicly and be rushing to IPO.
I guarantee they are losing billions per quarter. You can say they make money on inference, but that is irrelevant. That doesn't include all of their overhead and indirect costs let alone model training.
Surely AI is a thing that is here to stay, but I am not at all convinced that the big frontier models are going to be able to return their investment and if it becomes apparent they cannot, then you are almost certainly going to see a massive correction.
An average rocket launch for SpaceX costs 74 million. A business they break even on. Let's assume they get a bit more efficient and they get that down to 70 million per launch. According to Elon Musk's own estimate, the space data center will be 150 KW, roughly one Nvidia AI rack. It probably has to be under volted a bit and run at 120 - 140 kw, but, whatever, roughly equivalent.
A 100 MW data center costs up to 5 billion and to power it costs roughly 150 million a year, so let's just say 1 billion more for five years of power, so 6 billion dollars for the first 5 years of the data center's operation. Why just 5 years? Because that is how long a Starlink low-earth orbit satellite stays up before it is scuttled and burns up in Earth's atmosphere, so after 5 years you can write that thing off.
Anyway, the benchmark is set. 100 MW data center at 6 billion dollars. But hey, there are roadblocks here on earth; land isn't cheap and costs keep going up, so let's worst case scenario this and say the cost of a terrestrial data center doubles to 10 billion dollars and power costs quadruple. So that's a worst case scenario baseline cost of an astonishing 14 billion dollars for a terrestrial 100 MW data center with power for five years.
70 million per rocket launch seems like pennies compared to 14 billion dollars and power is free in space! But wait, you would of course need 666 of these 150 KW mini data centers to be equivalent to one 100 MW data center. So, 666 SpaceX rocket launches, at 70 million dollars per, equals 46+ billion dollars. And that is before you factor in any other, you know, data center costs.
So no, there is no life time where it is cheaper to have data centers in space, but it may be a thing Elon does just to keep the stock price high.
1. Selling an old compute unit is a significant cost savings when they are replaced every five years. In space you basically have to write them off.
2. Cooling in space is limited. Not impossible but limited. And these things throw off massive amounts of heat. You are talking about huge heat sinks which take valuable space and add massive weight that limits space on the rocket.
3. The size per data center will be relatively minuscule OR they somehow have to assemble in space adding additional complexity.
4. Any launch, deployment, connectivity, or hardware failure is a total loss. So you have to account for that.