Here's a happy one, for a change: the Focus Fusion guys actually succeed, and we get radically cheaper electricity that can be mass-produced in a big way. This

Here's a happy one, for a change: the Focus Fusion guys actually succeed, and we get radically cheaper electricity that can be mass-produced in a big way. This would change everything. Aluminum would become a lot cheaper with cheap energy for refining it. The various water shortages in coastal areas would be easier to deal with, thanks to cheaper energy for desalination. We could replace gasoline with carbon-neutral synthetic fuels. I'm probably still thinking way too small here.