Comment Re:How will they cool it? (Score 1) 41
That's a real problem for all spaced based nuclear reactors (fusion included). It's a difficult problem, but not one that's intrinsically insoluble. And it really should be solved.
(My design goal here is building a large mobile habitat, but not within the next few decades. Ideally something that could be converted into a SLOW interstellar vehicle... say averaging less than 10 km/s different from the local drift. And subsisting by savaging off that drift. So it needs to be a pretty closed ecology.)