Quote Originally Posted by discovery1
I suspect those turbines would have to be unreasonably large.

Anyway, you are all missing the point. Energy sources will change sure, but that is a minor detail. The main point is that Lemur's horde will take over Earth, while I and my college buddies will flee to space and establish ourselves as the Empire of Heaven.
A flying washing machine stuff fulled of beer bottles does not count as a space empire.