Why do so many of us believe in quackery and conspiracy? In his guide to thinking better, Professor Steven Pinker tries to make sense of the senseless. Steven is joined by Jonathan Rauch, senior fellow at the Brookings Institution, and the author, most recently, of ‘The Constitution of Knowledge: A Defense of the Truth’ and by Ellen Cushing, Senior and Special Projects Editor at The Atlantic. What was it that finally convinced her that there isn’t really a global organisation communicating in cryptic symbols and masterminding world events by planting agents in governments and corporations. Producers: Imogen Walford and Joe Kent Editor: Emma Rippon Think with Pinker is produced in partnership with The Open University.