"Finally, assuming that many of those are fulfilled, which won't be easy in tight budget times, we're taking the supply side at the basic research level, because that's where government is absolutely fundamental."

Next Quote

We need to look at less obvious paths, things like the wind in the jet stream, which is very high up. The material science of what type of kite string you would need to connect up to that. That's still at the basic research level.

— Bill Gates