Last week, an amazing thing happened. The President of the United States walked into a garage in Los Angeles to record a podcast with a scruffy comedian named Marc Maron on his WTF show. This event rocked the mass media and political world in a big way and sent a message that radio was not as relevant as podcasting in enabling intimate and personal connections with voters. This WTF episode garnered about a million downloads within 36 hours. This is another tent pole moment on the scale of “Serial” for podcasting and on demand audio.