Answer: the ADHDeedeedeedeedee Era (I can joke since my whole family has it):
younger peeps have no time to dwell, instantaneously changing channels, tunes, moods, decisions, directions. Everything's a collage of overlapping collages -- my wife, who's a lot younger than me, flips through movies on the remote menu before I can even read the descriptions, and changes songs before I can name that tune.
I've never observed my son listening to an entire song... all his teammates have personalized walk-up songs when they step into the batter's box -- 5 seconds of an intro or verse, then it's Play Ball!