This is fine if you are comfortable showing that SOME chip can be run in space at SOME cost, but it skips all the details that drive whether a data center in space is will work logistically and economically. There are many of these details, including but not limited to:
- Is it possible to use convective cooling in space? If so, how does one design it so that the convective fluid doesn't just dissipate? If not, can chips be designed that successfully evacuate heat radiatively or do the chips burn themselves up?
- What is the balance between collecting energy on the sun side of the system and protecting equipment from cold on the shaded side? Does the equipment have to survive large temperature cycles? If it can't does the data center have to use thrust to rotate itself to keep the hot side hot and the cool side cool? What would that mean for design cost, for refueling?
- How does all of this equipment (solar panels, batteries, GPUs, communication equipment, thrusters, control systems) deal with the high levels of ionizing radiation in space?
- The design and duty cycle of all these pieces of equipment implies various levels of refueling, repair, etc. Assuming all that can actually be done successfully at rocket's length, is the total cost within what the market will pay?
These details whether a data center can be made operational at all and if so whether their economics make them worth doing.
What Google is doing strikes me as a pretty sensible step - put a few chips in space and see what happens.
What Elon Musk does is claim that something will be solved next year and do some pump-and-dump crap around a company he claims will be doing that thing next year.
Where is "Full Self Driving", as in you can actually let the car drive and not monitor it? Where are the fleets of "Optimus" robots? Where is Tesla's super-awesome battery tech? And the Cybertruck that can float?
Oh right, they'll all be here at {year} + 1.
