That is a good question. Even on Earth, a large number of small reactors may not be better than a small number of large reactors. Pebble bed reactors might be i

That is a good question. Even on Earth, a large number of small reactors may not be better than a small number of large reactors. Pebble bed reactors might be inherently safer and easier to operate, but the German demo reactor got its pebbles jammed and they can't figure out what to do with it. Fast reactors can consume what is otherwise high level waste, but they also have risks. On top of all that, are fission reactors compatible with VC fund liquidity horizons? I think that may be part of why some startups are focusing on operating instrumentation and software. You can patent that and sell it as a product separate from the reactor. Or worst case backstop your investors from losing their whole investment.