As Governor of Britannia, Magnus Maximus has a huge army at his disposal, which is just what he needs to secure the Roman imperial throne. But perhaps the impressive general should have looked into the past before focusing on his future. Tim is joined by Paul Cooper, host of Fall of Civilizations Podcast, to explore why powerful civilizations such as the Assyrians, the Han dynasty and the Roman Empire all ultimately collapsed.

Paul Cooper is the author of Fall of Civilizations: Stories of Greatness and Decline. For a full list of show notes, see timharford.com