I had this realisation recently but instead of that 70s show it was when they played Zombie (Cranberries) last time I was at Starbucks and Zoomer employees were kind of bopping to it.

Kids listening to 00s Green Day like American Idiot today = us listening to the hits from Guns n Roses, Duran Duran, etc... and I those in turn sound to kids today like the Beatles and Beach Boys sounded to us.