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Every telco satellite can cool its electronics. However, more than a few kW is difficult. The ISS has around 100kW and is huge and in a shadow half the time.

> Cooling, on the other hand? No way in hell.

Space is actually really cold when the sun is blocked

So, solar panels on side, GPUs on the other, maybe with a big ass radiator ...

Space is empty, not cold.

> Space is empty, not cold.

The "dark" side of the JWST has temperature of about 40 K (-233 C)

How does a radiator work in a vacuum?

The cooling is the bit where I'm lost on, but it will be interesting to see what they pull off. It feels like everyone forgets Elon hires very smart people to work on these problems, it's not all figured out by Elon Musk solely.

Google, Blue Origin and a bunch of other companies have announced plans for data centers in space. I don't think cooling is the showstopper some assume.

Good call out, and really interesting. SpaceX being the cheapest way to get things into space, it seems like SpaceX is about to become extremely lucrative.