Part two of Oprah’s discussion with Pulitzer Prize-winning writer Isabel Wilkerson and readers about the book, Caste: The Origins of our Discontents. The second episode in the eight-part series focuses on the second pillar of Caste, “Heritability”; the idea that permanent rank in society is inherited and passed down through ancestry. Special guest Academy Award winning actor Forest Whitaker joins the conversation. Oprah and Isabel respond to questions and comments from readers on the second pillar.