Quote:
Originally Posted by Troubadour
 It's all about solar. Key to the future of humanity. I've written extensively about this elsewhere, and the possibilities of solar are infinite - and when I say "infinite," I'm almost being literal. It's not possible for most people today to comprehend the size of the potential they're about to open up. |
Except that you can only get up to a Type 2 civilization by using solar. To go any higher, you need Fusion!!!
http://en.wikipedia.org/wiki/Kardashev_scale