I was just joking but interestingly, as time goes on retiring bikers probably will have little acquaintance with, e g., down tube shifters, Brooks saddles, leather chamois, nylon stretched over a foam helmet shell, fixing a flat, sew ups, friction generators, riding on a highway protected only by a painted line, triples, public hiker/biker camps for 50¢ a night (showers included), eating an entire pizza, no phone or internet...