Listen now (103 min) | Nick talks to chemist Dr. Lee Cronin about life: how it originated on Earth, how we might detect signs of alien life in the universe, whether it can be created in the lab, and related topics. Lee talked about his work on "assembly theory," which provides a framework for thinking about these questions and providing an unbiased way to detect signatures of life in the universe. They also discussed how some of these ideas might relate to evolution, selection, consciousness, and time.