Michael Pollan is a journalist and author, and is currently the Knight Professor of Science and Environmental Journalism at the UC Berkeley Graduate School of Journalism. He has written several books on the social and cultural impact of our relationship with the natural world including The Botany of Desire and The Omnivore's Dilemma. In 2018, he wrote How to Change Your Mind, a bestselling book on the current renaissance in scientific research on psychedelics. Today we talk about psychedelics and our relationship to the natural world.