Play It Again

Last month, over beers after a round of pitch 'n' putt, my buddies and I landed on a familiar subject: Adam Carolla. None of us listened to him anymore, and it wasn't because of what had changed — it was because of what hadn't. But that raised a bigger question. Why do some things curdle on the hundredth pass while others — a book, a song, a course you've played before — keep giving? Casablanca,…