Steven Pinker joins us for a thought-provoking discussion on how sectarian solidarity and our pursuit of self-interest has led to the demise of objectivity, truth, and collective rationality.

Steven Pinker is one of the world’s most well-known and admired cognitive psychologists. A professor at Harvard, he conducts research on language, cognition, and social relations. Pinker joins host Rudyard Griffiths to discuss the demise of truth and collective rationality.