Eminent British philosopher A. C. Grayling discusses the fields of knowledge that have opened up with new methods and tools of inquiry – including cutting-edge physics, humanity’s very ancient history before Greece and Rome, and what we now know about the mind and the brain. Hosted by Newcastle philosopher and author Russell Blackford. The Frontiers of Knowledge: What We Now Know About Science, History, and the Mind is published by Penguin Random House Australia. Buy your copy from the Festival's bookstore, MacLean's Booksellers. See omnystudio.com/listener for privacy information.