Can taking psychedelics teach us more about the mind than science and philosophy? Is it rational to trust what mystical experiences seem to be telling us about ultimate reality? These are questions Keith and Philip would like the answers to, and apparently Sarah Lane-Ritchie and Aidan Lyon have...

Kevin Mitchell is Associate Professor of Genetics and Neuroscience at Trinity College Dublin. He is also the author of the wonderful recent book 'Free Agents: How Evolution Gave us Free will', a robust defence of the reality of free will. Between the three of us, we aim to definitely establish...