I was at my favorite conference in my favorite city, San Francisco, having a drink at my favorite bar, The Gold Dust Lounge just off Union Square. It was a long narrow bar with a lived-in quality and was packed to the gills. Johnny Z and the Cameros were playing songs like Sweet Caroline and Peaceful Easy Feeling. My companions had left, but I was just getting started. A guy took a stool next to me, noticed my conference badge, and introduced himself.