Cathy O'Neil is a mathematician, data scientist, and author. Cathy joins the Armchair Expert to discuss how shaming is used as a tool of oppression, how companies profit from shaming people publicly, and how social media conditions them to shame. Cathy and Dax discuss Race to 270, what punching-up shaming is, and how most people are in denial of their own shame. Cathy explains what the four stages of shame are, when shame can be used appropriately, and the ways in which you can challenge your own shaming.