Economics 101 (Score 1)

"Solar power may look terribly uneconomical at the moment, but with the exponential progress being made in nanoengineering, Dr. Kurzweil calculates that itâ(TM)ll be cost-competitive with fossil fuels in just five years"

I'm not sure that cost-competitive is the right way of looking at this. It's a matter or absolute versus comparative advantage. With the increase in fossil fuel prices, teleportation may soon be a cost-competitive alternative...