Actually, some of us predicted exactly what’s about to happen: these companies will launch a handful of GPUs into space, declare that it’s “working”, and then continue to build out terrestrial data centers at orders of magnitude faster rate.

No one is saying it’s impossible to put operating GPUs in space. People are saying that the economics of this make zero sense, and there seem to be hard physical limits for how much you can change parts of the reasons why. This test does absolutely nothing to disprove that.