The Physics of Space Data Centers ∞

The math mostly doesn’t math.

Tuesday, February 24th, 2026

When infinite rebuyer Elon Musk merged xAI and SpaceX, he was quoted as saying “In the long term, space-based AI is obviously the only way to scale.” I thought that sounded pretty stupid, but I didn’t dive into it. Thankfully, physics professor Rhett Allain has, in this Wired piece.