Comment by JumpCrisscross
15 hours ago
> What is the benefit of "moving compute to space"?
I’ll bite. It’s cheaper and quicker to permit a launch than permit, zone and interconnect a datacenter. And solar panels in space don’t need glass cladding, which makes them cheaper to make and lift.
The downside is launch cost. But there is a breakeven between these factors that seems to have most of its error bars within Starship’s target. (By my math, around $35/kg.) So if Starship works, and all indications seem to show that it will, eventually, then that puts space-based data centers at cost parity with terrestrial ones within a decade. Which was, well, unexpected when I ran the numbers.
(The surprising finding when you run the numbers is launching the chips and solar panels isn’t the limiter, it’s launching the radiators. Which opens up whole new questions about at what scale it makes sense to stop sending those up the well.)
> It’s cheaper and quicker to permit a launch than permit, zone and interconnect a datacenter
There's plenty of empty land sufficiently far from cities and not being used for anything else and that shouldn't have permitting or zoning problems.
For interconnect do that via satellite.
The capacity of a single datacenter would require thousands of launches to get the equipment into space. I don’t believe for a second that this would be easier in any way. Cooling and bandwidth are also completely unsolved for compute on a useful scale.
What about maintenance? I’d naively assume that’s the killer.