Politics was good a hundred years ago. Today, politicians have no ability to solve any problems because they are not students of behavior. They are not students of agriculture, oceanography, they know nothing about the factors that operate the world. So, they say things that people like to hear. And that gets them elected. Now scientists on the other hand are not concerned with public approval. What they do, even if everybody on earth believe the earth was flat, they would say: 'You're wrong, this is the evidence we have to support the fact that the earth is round' but they don't say: 'it's a little round and a little flat' - that's politicians.