What keeps me up at night in a negative way is, if we don't solve the problems of the human heart and of the human head, of human psychology, there is no technological solution so great that it can prevent the world that is coming, and a world of suitcase bombs or of the ability to pollute the planet in a way that it cannot recover, of global warming and the rest. We've created through science and technology a different world that has frightening sides to it, and psychology and behavioral science has to be part of this. We're going to have to find a way to humanize the culture itself.