I'm a theoretical physicist, specializing in quantum mechanics, gravitation, cosmology, statistical mechanics, and foundations of physics, with occasional dabblings elsewhere. This site contains information about me, including research and my CV, plus news, books, videos, and other activities. My latest book, released May 2016, is The Big Picture: On the Origins of Life, Meaning, and the Universe Itself.

My official title is Research Professor of Physics at Caltech. I live in Los Angeles with my lovely wife, science writer Jennifer Ouellette.