Sorghum is kind of unusual. It can go to very high heats, but it's not as productive in most environments as maize is.

The trouble with energy farming is that the energy isn't always where you want to use it, and it isn't always when you want to use it.

DNA is like a computer program but far, far more advanced than any software ever created.

If you want to build a great company, get the hell out of Silicon Valley.

Innovation is moving at a scarily fast pace.

(Talking about his first computer) Like all kids we not only fooled around with our toys, we changed them. If you've ever watched a child with a cardboard carton and a box of crayons create a spaceship with cool control panels, or listened to their improvised rules, such as "Red cars can jump all others," then you know that this impulse to make a toy do more is at the heart of innovative childhood play. It is also the essence of creativity.

Other paths would include making nuclear fission cheap enough and safe enough that people broadly embrace it, so that could be scaled up.