its based on a lot of wishful thinking without very much hard science.every few years we get the press getting all excited about the latest fad,coldfussion,superconductors and so on which is going to change the world.I am still waiting for my flying car.
I was reading about the cold fussion fuss there was a few years ago,its quite amazing the things that you dont get told that went on behind the schenes as soon as the press desided that it was an interesting story.