Rationality tells us we need to be completely realistic about the state of the world and our place in it. But psychological research tells us that’s bunkum. It turns out to be healthier and more useful to hold a few unrealistic views about ourselves and the world.

Ed Deiner, a professor of psychology at the University of Illinois, tells us that part of our quality of life turns on our personal approach to the world and how we interpret it.

Bruno Frey, a professor of economics at the University of Zurich, has observed that unrealistic optimism and unrealistic perceptions of control contribute to our happiness. [Read more →]