In this episode, I’m joined by Dr. Chris Letheby: a philosopher of cognitive science who focuses on psychedelic experience & its implications for our understanding of consciousness. Chris is a Lecturer in Philosophy at the University of Western Australia and a Postdoctoral Researcher at the University of Adelaide. He has a soon-to-be-published book: Philosophy of Psychedelics. Along with Philip Gerrans, Chris is behind one of the most interesting theories of what the self is, a theory that explains why the sensation of being a ‘self’ arises in consciousness, which they call the “predictive self-binding account”. His work goes on to study how high-dose psychedelic experiences disrupt this model of self-consciousness, and weaves the implications into a broader project he calls Naturalizing Spirituality. Our conversation follows three main topics: What is the predictive self-binding account of self-consciousness? How do psychedelics disrupt self-consciousness? What can these psychedelic experiences that alter our self-consciousness tell us about the prospects of a naturalized spirituality suited for the 21st century? This was such a fun conversation, & I find Chris’ work absolutely brilliant. Cannot wait to see his work evolve. Enjoy!