SpaceX will just use the compute directly if they don't have buyers. They are already talking about the data center shortage as well because they can't get capacity elsewhere either. It's a weird problem to not be able to use your own data centers because you rented them out.

Between SpaceX, Starlink, Tesla, Neuralink, X, Grok, Grok Bot & Cursor there's not a demand shortage.

Grok Bot's the fastest growing product in the history of the company and the moment you use it, it's clear why. Took me about 1-2 days to realize I'd have a very hard time going back to not having it available.