Yeah, but that graphite has to have zero boron in it, which is not easy to accomplish. You have to go to fairly crazy extremes, like regulating what kind of la

Yeah, but that graphite has to have zero boron in it, which is not easy to accomplish. You have to go to fairly crazy extremes, like regulating what kind of laundry detergent your factory workers are allowed to use. https://en.m.wikipedia.org/wiki/Nuclear_graphite https://en.m.wikipedia.org/wiki/Nuclear_graphite Heavy water is simpler to get; you basically just need a lot of electricity.