Ava DuVernay's new film Origin explores a new way to consider the historical subjugation of Black people in America: as the adverse result of a caste system. The film is inspired by Isabel Wilkerson's book Caste: The Origins of Our Discontents. In the movie, Wilkerson embarks on a journey to learn about caste, traveling to Germany and India to get to the root of the Black experience in America.Also, we'll talk about how algorithms flatten culture with journalist Kyle Chayka. He says algorithms affect every aspect of our lives — from what we watch on Netflix, what songs are at the top of the charts, to what our local coffee shop looks like. His book is Filterworld.