Of course, if this happens . . . Nuclear Fusion will apparently change everything, and then power would be limitless and clean. Except that . . . fusion will surely guarantee the existence of big centralised power, sustain the philosopher kings, create a new fusion power elite and bring on all the concomitant security demands, etc. Because nuclear fusion would have to be done with some big piece of kit, etc., who knows? We don’t even know what it would look like, but it sounds like something which would demand a lot of authority and security.
Enough. Natural energy harvesting guarantees the independent existence of individual agency and power at the common level. No more central powers, just lots and lots of small operations, down as far as the household.
Fusion isn’t the way to freedom, it would mean continued close supervision and serfdom; unless fusion turns out to be something that anyone can do in a bucket of cold water, but, according to our calculations, this still looks unlikely.
If nuclear breeder reactors are developed, they could use up all of the nuclear waste in the world, and indeed there would no longer be any such thing as nuclear waste, as it would all become redefined as unspent fuel. It would be the solution to that problem. Build them somewhere remote, use all the waste up, then when the last rod is burnt dry of radiation, close them down. Build them on the Moon, because this is a place for life.