[Unedited] Keith Devlin with Krista Tippett

[Unedited] Keith Devlin with Krista TippettKeith Devlin is a mathematician and executive director of H-STAR at Stanford University in Palo Alto, California. Krista Tippett spoke with him on July 11, 2013. This interview is included in our show "The Joy of Math." Download the mp3 of the produced show at onbeing.org.