> if you can produce energy that cheaply you can sustain a large population in comfort at home Don't see the reasoning here. For example, we currently can fee

> if you can produce energy that cheaply you can sustain a large population in comfort at home Don't see the reasoning here. For example, we currently can feed the whole Earth population "cheaply". But the wars didn't end. Same with cheap energy. E.g. we can try to install vast amounts of mirrors to direct Sun's light towards an accelerating ship. But that won't bring us here more comfort.