“A Paul McCartney concert is the most perfect expression of baby-boomer nostalgia. Which isn’t to say that there weren’t young people in the crowd: McCartney brought one 20-something signholder onstage and autographed a “Hey Jude” tattoo on her ribcage, joking that “you never know what you’re going to get up here.” That sentiment isn’t exactly true, but who needs surprises when you have a half century of memories to rely on?”
