Fusion fuel is so compact, there's really no need for that. To get an idea of it, deuterium is less than 0.1% of the hydrogen in water, and there's enough in yo

Fusion fuel is so compact, there's really no need for that. To get an idea of it, deuterium is less than 0.1% of the hydrogen in water, and there's enough in your morning shower to provide all your energy needs for a year. Nuclear aircraft carriers go thirty years without refueling, and fusion could easily do the same.