My friend Ann believes there is a very specific advertising demographic profile which consists of: 1) men in their late thirties and early forties 2) who use the digital music service Spotify 3) and run while wearing Vibram Five Fingers (those goofy looking "shoes" that have individual slots for each toe, and simulate the experience of running barefoot . . . sans glass shards, tetanus, and trichinosis) and she may be right . . . and I may be a member of this demographic, but all I can say in my defense-- which is exactly what the advertising folks want me to say-- is, "I love Spotify!" and "I love my Vibram Five Fingers!" and "I can't wait to see what they sell me next!"