Terrible math is terrible.
Better napkin math that is still being unrealistic compared to the true costs of space-based datacenters: https://www.reddit.com/r/theydidthemath/comments/1quvbi4/sel...
Just contemplate what the radiator array and solar array needed a 1GW datacenter and all the cooling equipment and coolant, and imagine the harsh environment in space degrading it constantly.
The only point of the space-based datacenter idea is to pump the Spacex IPO