> unless they send people up there with the datacenters who the heck is going to do maintenance

A fleet of special ships for orbital commute and future generation Optimus, no doubt.

OR - they follow the same approach as the current fleet of Starlink satellites. Probably have some redundancy baked in (eg 10 operational GPUs with 3 backup). They have rich data around hardware expectancy in space. Can’t hurt to have that for simulations.