Episode 8: Optimism, Guns and Trump

This episode may sound like the sequel to 'Guns, Germs and Steel', but in fact Nick and Carey talk about Steven Pinker's new book, 'Enlightenment Now', which continues from his previous book, 'The Better Angels of our Nature' in that it claims that things are, broadly, improving for humanity. Is this true? And if it is, why does claiming it make some people so angry? Carey explains the Mean World Syndrome, then they get sidetracked onto school shootings, gun control and, inevitably, Trump.