What things will be obsolete in the future?
Probably wristwatches, since we all have clocks on our cars, cell phones and computers. I haven’t worn a watch for years. Not many people realize that wristwatches were invented for early airplane pilots, so they could tell time in their open cockpits while flying through the skies. Before then, people carried pocket watches. It would make sense for paper money to become obsolete and be replaced by debit cards, but that is an extremely old habit that will be a long time dying. Pennies will probably go pretty soon, though. Neckties have gotten dangerously close to obsolescence, but I think they’ll make a major comeback in the next decade or so. Fashion isn’t driven by necessity or logic.