Who knows what the future will bring? Just look at the ignorance of only a few hundred years ago. Earth was center of universe, earth was flat, mermaids were actually dolphins and whales, and no idea what in heck the stars were. Even in the last 100 or so years we've made more progress since the 6 millions or so before that. If your in your 50's or 60's or older just look whats happened in our liftimes?
Men on the moon? Old news. The discovers of the universe alone have been astounding. As a young man if I wanted to call over sea's it wasnt much different then in the 1940's. Now? If your kid is stationed over seas you can play a video game with him and talk in virtual real time. Just the tech behind Aces High wasnt even dreamed of in the '60s. A kid joining the service now will in his lifetime probably see Hypersonic transport, quantum computers, evidence of life on other planets, incredible advances in medicine, maybe even AI.
Things seemed, and seem, impossible not because we dont have the answers but cause we havnt even discovered the questions yet. But If I ever get a ticket on that times machine there will be more then a few girls I passed up that will be getting a phone call.