Graeme Davison is Australia's most eminent urban historian.Full transcript available at: josephnoelwalker.com/graeme-davisonSee omnystudio.com/listener for privacy information.

Cheryl Misak is a Canadian philosopher and the author of Frank Ramsey: A Sheer Excess of Powers.Full transcript available at: josephnoelwalker.com/misakSee omnystudio.com/listener for privacy information.

Malcolm Turnbull was the 29th Prime Minister of Australia.Full transcript available at: josephnoelwalker.com/malcolm-turnbullSee omnystudio.com/listener for privacy information.

Andy Lee is one half of iconic Australian comedy duo Hamish & Andy.Full transcript available at: josephnoelwalker.com/andy-leeSee omnystudio.com/listener for privacy information.

Robert Skidelsky, FBA is a British economic historian. He is the author of a three-volume award-winning biography of British economist John Maynard Keynes.Full transcript available at: josephnoelwalker.com/skidelskySee omnystudio.com/listener for privacy information.

Noam Chomsky is the father of modern linguistics and one of the most cited scholars in modern history. He is also one of the most influential public intellectuals in the world, having written more than 150 books.Full transcript available at: josephnoelwalker.com/chomskySee omnystudio.com/listener for privacy information.

Sir Paul Collier is a British development economist. He is currently a professor of economics at the University of Oxford and was the Director of the Development Research Group at the World Bank between 1998 and 2003. Paul has authored numerous books, including The Bottom Billion, The Plundered Planet, and The Future of Capitalism. His latest book, co-authored with John Kay, is Greed is Dead: Politics After Individualism.See omnystudio.com/listener for privacy information.

Zach Carter is a senior reporter at The Huffington Post and the author of the New York Times bestseller The Price of Peace: Money, Democracy and the Life of John Maynard Keynes.Full transcript available at: josephnoelwalker.com/zach-carterSee omnystudio.com/listener for privacy information.

Robert Plomin is one of the world's leading behavioural geneticists. He is currently MRC Research Professor in Behavioural Genetics at the Institute of Psychiatry, Psychology and Neuroscience at King’s College London.See omnystudio.com/listener for privacy information.

Jack A. Goldstone is an American sociologist and is widely regarded as one of the world's leading experts on the subject of revolutions.Full transcript available at: josephnoelwalker.com/jack-goldstoneSee omnystudio.com/listener for privacy information.