As for the space datacenter idea, I think this is just a case of extreme marketing that Musk's ventures are so accustomed to. Making huge promises to pump their stocks while the US government looks the other way. When time comes for them to deliver on their promises, they've already invented ten more outrageous ideas to make you forget about what they promised earlier. Hyperloop as a viable mode of transportation, tunnel networks for Teslas, SpaceX vehicles as a mode of transport, X as the new 'everything app', insane timelines for a Musk-led human mission to Mars. They've done it all.
They never bothered to improve on the car part, causing Teslas across the western world to fail inspections at staggering rates when the very basic car bits couldn't handle the torque of an EV.
Now old manufacturers have caught up on the computer front and China is blowing past at crazy rates and Tesla is legitimately in trouble.
The very high profile CEO cosplaying as an efficiency edgelord with the american president didn't help the company's image at all either.