Yeah, launch costs alone make it infeasible, and power being "free" exacerbates the cost (gotta get all those panels up there). Cooling is also dramatically harder, plus shielding, and it makes repair/upgrade basically impossible.
I'm not going to assert that large scale space compute will never happen, but I feel confident saying it won't happen this decade or next.
I'm not going to assert that large scale space compute will never happen, but I feel confident saying it won't happen this decade or next.