I was recently in an electronics store. (As I entered I was treated to 50 TVs playing Michigan's loss to Appy state--isn't it time to move on?)
Anyway, I actually saw three separate people, all clearly born since 1980, wearing Beatles T-shirts. Would anyone have predicted in the sixties people still listening to this band forty years down the road? Okay, maybe they would--they were pretty big, and after initial resistance, everyone got how good they were.
But I noticed then, playing in the background, someone had put on The Ramones greatest hits. Thirty years ago, when this band was at their height, they were considered too scary to play on the radio. Now people were walking by, humming along. They've become a nostalgia act. I guarantee you no one saw that thirty years ago