The math currently works given a lot of rosy assumptions about xAI's ability to develop Starship + orbital cooling but no way it works in 5 years.

There's a huge GPU shortage right now, so prices are inflated. In the long term what matters is that

cost of launch + space hardware < cost of electricity

Electricity is only about 10-15% of the cost of running a terrestrial AI datacenter, so that doesn't give them a lot of room to undercut their terrestrial competitors

What terrestial competitors? It is illegal to build datacenters in the states without getting sued to death.

10-15% opex over 5 years, gives you what?

Google has a total dependency on it's own infra and does fine. Why do its customers need multicloud? Huge PITA unless you need an absurd number of 9s