[Simon_O_Rourke]

I find the concept of Dyson swarms or spheres to be too grounded in what we humans would do now to capture that sort of energy. What are they going to use all that energy for anyway? We may as well discuss how alien civilizations handle mortgage interest rates.

We've got no concept of power requirements or generating capacity for even our own species given a few thousand years. No need to be projecting our own technology onto another potentially intelligent civilization.