To see the sights JJ had seen in his lifetime, and not just him but many people his age constitutes maybe the single greatest advancement ever seen by a single generation. My father tells the tale of when he was flying with Branniff, at one point on a 747 trip from New York to LA during the 70s, the stewardesses ushered a 101 year old woman up to the cockpit (back when they did that kind of thing). It was her first trip in an airplane and the 747 was a mighty big step. When asked by the captain if she had ever been to LA before (while marveling at the ground from FLT LEVEL 360) she replied matter of factly: “Why yes, I first went there on a wagon train before the turn of the century and we ended up coming home to New York by ship… and that was before the Panama canal short cut ... young man”.
JJ could out pace her I’m sure.