You've had the experience. You're driving in the car or Pandora-ing or even - gasp! - listening to the radio when that song comes on - the one you can't believe you forgot all about. Instantly, you're transported in time and space - back to that kegger during your freshman year when you got so drunk that you lost your shoes. Or to that high school dance where you got dumped by the vending machines. Or to your wedding, the birth of your child, your divorce. I've written before about the
