Constructing a Theory of Everything

Physicist David Deutsch has come out with his long-awaited theory of the nature of reality, and it could be the beginning of a new branch of physics. He calls it the Constructor Theory. (Of personal interest is where the number 42 fits in.): http://www.newscientist.com/article/dn22469-theory-of-everything-says-universe-is-a-transformer.html