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We’re not going to use 100% of our solar panel manufacturing capacity to power space data centers, specifically because everyone else on the ground is so power-hungry. If we’re being generous, it could maybe top out at 1%, which adds another ~20 years to your timeline for a total of 50. I think it’s safe to say this part is bunk (along with everything else about this plan which is also bunk).

We seem to be using 100% of our DRAM manufacturing for AI. So it's not completely out of the question.

I think it largely depends on what bottlenecks exist that we haven’t hit yet.

Space to put them, terrestrially, is not infinite. Demand has a hard ceiling.

unless demand comes from space

That's a supply ceiling. Funnily, it's also one that's solved by putting them in space.

Plenty of space still, but we're running into other scaling issues now - power grids are at their limits. And on sunny days there's a lot more supply than demand, but that can be mitigated by adding more (battery) storage.