If someone can get even D-D fusion to work effectively as a power plant--and we should only be so fortunate--we ought to use it everyplace we can. Believe me, the waste will not be a problem if you design the systems correctly. Fusion waste (isotopes of structural materials created by neutron emission) tends to have much shorter half-lives than fissionable wastes (about 100 years of serious radioactivity at most), and the amounts are very small.

Boron is found in minerals like Borax. Turkey and the United States have the largest reserves. Turkey has over half the known reserves. Go figure.

Electric vehicles will become common when they work like people want them to, and can be afforded by the average person. This will happen after a period of time when only the rich can afford them. This has been true of almost every other consumer high-tech that ever was.

When fusion finally works, believe me, the space programs will be standing in line to use it. It will be the key to the widespread exploitation of space, and access for all of us.