The problem isn't GPUs the problem is cooling them.
Look into what percentage of the ISS by weight is radiators, look into how little power it can generate and radiate, and you'll see that space data centers is the shitcoin pitch of 2026.
Also they are not building them in 3D space with current tech. We clearly don't have it. Cars barely drive themselves in cities, they are decade behind building and maintaining a. datacenter in space.
Look into what percentage of the ISS by weight is radiators, look into how little power it can generate and radiate, and you'll see that space data centers is the shitcoin pitch of 2026.