This is interesting to consider, but I think the flaw here is that you'd need a "total mobilization" level workforce in order to build this mega datacenter in the first place. You put one human-hour into making B200s and cooling systems and power plants, you get less than one human-hour-equivalent of thinking back out.
No you don’t. The US government has already completed projects at this scale without total economic mobilization: https://en.wikipedia.org/wiki/Utah_Data_Center Presumably peer and near-peer states are similarly capable.
Datacenter construction is a one-time cost. The intelligence the datacenter (might) provide is ongoing. It’s not an equal one to one trade, and well within reach for many state and non-state actors if it is desired.
It’s potentially going to be a very interesting decade.
