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Recently Philip and Sabine Hossenfelder had a discussion on Twitter about the relationship between science and the entities referred to in scientific theories: https://twitter.com/Philip_Goff/status/1725487476695830778. We're going to interview philosopher of science doctoral candidate Cat Gillen (Durham University) on the debates between realists and instrumentalists in the philosophy of science. To support this podcast, please consider donating to our Patreon, including joining the Mind Chat community that discusses each month's episode with Philip and Keith following the broadcast: https://www.patreon.com/MindChat

Keith and Philip will discuss Philip's new book 'Why? The Purpose of the Universe.' https://www.amazon.co.uk/Why-Purpose-Universe-Philip-Goff/dp/0198883765

Donald Hoffman is a cognitive scientist at UC Irvine and author of 'The Case Against Reality.' He believes that the world we experience is an illusion, whilst ultimate reality is composed of networks of conscious agents. Keith and Philip probe Professor Hoffman's view from their very different perspectives on the nature of consciousness. Here's the paper we discuss at length which argues that Donald's argument from evolution is self-defeating: https://link.springer.com/article/10.1007/s11229-022-04021-1 Here's Donald's recent co-written paper in which the authors attempt to ground physics in networks of conscious agents: https://www.mdpi.com/1099-4300/25/1/129

Eric Schwitzgebel is professor of Philosophy at the University of California, Riverside. His research interests include philosophy of psychology, philosophy of mind, moral psychology, classical Chinese philosophy, epistemology, metaphilosophy, and metaphysics. He has also written a number of pieces of philosophical science fiction, which have been published in leading science fiction magazines.

Many philosophers worry about David Chalmers' 'hard problem' of how brains produce consciousness. But do ordinary people who haven't been exposed to the peculiarities of academic philosopher share Chalmers' intuition that there's a problem here? Professor Edouard Machery (University of Pittsburgh-Carnegie Mellon University) answers 'no.' Machery thinks the concept of 'phenomenal consciousness' that gives rise to these intuitions is an invention of academic philosophers, and he's built an empirical case to support his view, based on interviews with the general public. Dr Michelle Liu (University of Hertfordshire-Monash) has responded to the arguments of Machery and others, suggesting they may be ignoring to polysemous nature of language. Keith and Philip will host a friendly debate/discussion between Machery and Liu, whilst trying to resist the temptation to bring the discussion back to panpsychism and illusionism.

Professor Frank Jackson (Australian National University) came up with one of the most influential arguments against materialism about consciousness, a version of the 'knowledge argument', involving the story of Black and White Mary. Ironically, Jackson later recanted and is now a committed materialist. Keith and Philip will discuss with Frank the knowledge argument, why he changed his mind, and what he thinks about consciousness now. (Philip secretly hopes to bring Frank back to the fold of anti-materialists, but it's a long shot).

Mind Chat is back!! We've been a bit delayed due to illness in the family and Philip needing to finish a book. This is our delayed Christmas special, and will involve sherry, mince pies, and Christmas jumpers. Last Christmas special, Keith and Philip debated illusionism versus panpsychism. This year, we thought we'd invite a leading illusionist and panpsychist from the next generation of thinkers. Dr Francois Kammerer and Dr Luke Roelofs are both Postdoctoral Research Associates at the Centre for Mind, Brain, and Consciousness at New York University. They have both done incredibly interesting and provocative work defending illusionism and panpsychism, respectively. We're going to have a formal debate-style show, with a Twitter Poll to decide which view is correct. But as you might expect from Mind Chat, this is more in the spirit of fun than a macho fight to prove who's right. ⁠https://www.francoiskammerer.com/⁠ ⁠https://www.lukeroelofs.com/⁠

Noam Chomsky is an intellectual giant, who has made major contributions to linguistics, philosophy, and cognitive science. In this episode Keith and Philip explore Professor Chomsky's views on consciousness and the mind. Streamed live on Sep 15, 2022

Angela Mendelovici (University of Western Ontorio) is a prominent proponent of the 'Phenomenal Intentionality Theory': the view that all mental representation is at least partly grounded in consciousness. This view contrasts with David Papineau's as to how consciousness connects us to reality, which we discussed in an earlier episode. Our main focus will be to explore the Phenomenal Intentionality Theory, but Angela also happens to be a panpsychist, so Philip is hoping this will finally be a guest that agrees with him more than Keith.   Streamed live on Jun 29, 2022  Angela's website https://publish.uwo.ca/~amendel5/

Ann-Sophie Barwich is a cognitive scientist and empirical philosopher, and author of 'Smellosophy: What the Nose Tells the Mind' (Harvard University Press). Ann-Sophie explores how the neuroscience of smell challenges philosophical assumptions about the nature of perception.   Streamed live on Jun 16, 2022 Ann-Sophie's website http://www.smellosophy.com/  Publisher's webpage for Smellosophy https://www.hup.harvard.edu/catalog.php?isbn=9780674983694

In a special follow-up episode, Philip shares some personal reflections on the recent discussion 'What Does Physics Tell Us About Consciousness?' with Sean Carroll and Barry Loewer.

We previously had a long chat with Sean Carroll. A big bone of contention with Philip and Sean was the degree to which physics constrains our theory of consciousness. We decided it would be good to explore this issue in its own right, with a bit of help from esteemed philosophy of physics Sean Carroll (Rutgers University). These are Sean's articles we discuss (the latter is a response to Philip's book 'Galileo's Error'): https://arxiv.org/abs/2101.07884 https://philpapers.org/rec/CARCAT-33. Recorded 6 May 2022.