Phil says this is stupid because radiators are a "solved problem" but then stops short of extrapolating what that means.
The radiator surface area they specify is about the right size for the math to check out. You can make pretty much any physics "work" if you scale the right values on paper. The feasibility isn't about physics, its about economics.
For a moderately sized 100MW "data center" you'd need a fleet of close to 700 satellites to match its earthly alternative. That's an ISS's worth (the most expensive single structure ever built by humanity) of radiators, 700 times over, for a single "data center".
To put that into perspective that's about 73,000 m² or roughly 14 football fields worth of surface area
The costs to build such a fleet is insane compared to the the earthly alternatives we have yet to exploit and it assumes a lot of things that might not continue to hold true - like wattage per op staying constant.
It’s like someone looking at room-sized computers in the 50s and extrapolating that we are going to have a land crisis and starts imagining large floating sea platforms to host our computing future
Okay, I generally don't like dunking on stupid people because what's the point? But this guy's got a million followers on X and also a huge YouTube account.
This is one of the dumbest posts I have ever read.