It doesn't matter whether you can or cannot achieve high temperature superconductivity or fuel cells, they will always be on the list because if you could achieve them they would be extremely valuable.
“I'm interested in the fact that the less secure a man is, the more likely he is to have extreme prejudice.”
“I asked a French critic a couple of years ago why my books did so well in France. He said it was because in my novels people both act and think. I got a kick out of that.”