Dr Chris Letheby is a Lecturer in Philosophy at The University of Western Australia (UWA). His areas of specialization are philosophy of mind, philosophy of cognitive science, and philosophy of neuroscience. His research to date has focused mainly on the use of classic psychedelic drugs in neuroscience and psychiatry. In several articles and a book, Letheby has argued that a traditional conception of psychedelics as agents of insight and spirituality can be reconciled with naturalism, the philosophical position that the natural world is all there is. His monograph Philosophy of Psychedelics was published in 2021 by Oxford University Press.