The Knowledge Problem

Here's a letter to USA Today:

Sen. Bill Nelson claims that "The ultimate answer to America's energy needs lies not in oil, but in the rapid development of alternative fuels" ("Halt offshore exploration," May 13).

How in the world does Mr. Nelson divine this alleged fact?  Does he have expert insight into the full costs and benefits of developing and producing non-fossil fuels?  Has he displayed a unique talent at predicting changes in the technologies that are used to extract petroleum? ...