Lee Smolin is a theoretical physicist who is a founding and senior faculty member at Perimeter Institute for Theoretical Physics. His main contributions have been to the quantum theory of gravity, to which he has been a co-inventor and major contributor to two major directions: loop quantum gravity and deformed special relativity. He also contributes to cosmology through his proposal of cosmological natural selection: a falsifiable mechanism to explain the choice of the laws of physics.
He also has written four books: Life of the Cosmos, Three Roads to Quantum Gravity, The Trouble with Physics and Time Reborn. Most recently, he co-authored The Singular Universe and The Reality of Time with Roberto Mangabeira Unger.
Smolin attended Harvard University. After postdocs at IAS Princeton, ITP Santa Barbara and the University of Chicago he held faculty positions at Yale, Syracuse and Penn State University. He is also adjunct professor of physics at the University of Waterloo and a member of the graduate faculty of the philosophy department at the University of Toronto.