I don't think the economics of space-based data centers will ever make sense or at least not before space elevators are available. The only real reason I can see for this current push is for space companies trying to capture a fraction of the ludicrous investment in AI, or to do things in those datacenters which probably would be illegal at any point of Earth's surface.

Something must be wrong if forces driving global economy depend on a 60ms ping difference.

The point in my previous post is that there are already machines available which are capable of capturing CO2 from the atmosphere using nothing else than solar power, these machines are also auto-replicating and their fabrication process doesn't produce additional CO2 emissions. Furthermore some of their subproducts can be used to feed animals or build... buildings (excuse my poor english pleas). We have these machines already. We know them as PLANTS. I'd rather not get into the real motivations of the current push in favour of geoengineering, but I'm sure it comes from the same people always trying to make money from human disgrace.

The most simple geoengineering technique would be the most effective one: JUST PLANT TREES INSTEAD OF BURNING THEM