Windows need be no more than an archaic touch

Back in 1964, Isaac Asimov imagined the world, or more accurately the World's Fair, of 2014 - fifty years into the future.

Bridges will also be of less importance, since cars will be capable of crossing water on their jets, though local ordinances will discourage the practice.

I predict that in the world of 2064 we will not be able to laugh up our sleeves at announcements like that above; the government will mandate that we appear with bare arms so that drones can read the bar codes that have been tattooed onto our biceps. For our own good.