Steven Pinker is the author of the new book Enlightenment Now: The Case for Reason, Science, Humanism, and Progress. He sits down with Isaac Chotiner to discuss why he thinks life is improving despite the worldwide rise of demagogues, what Trump tells us about America’s relationship to Enlightenment ideals, and whether global warming and nuclear weapons should call into question our notion of progress.Email: ask@slate.comTwitter: @IHaveToAskPod Podcast production by Max Jacobs.Learn more about your ad choices. Visit megaphone.fm/adchoices