That little weird chart the paper always has on the front page, lower left corner.
On 10 Feb it was "Failed futurist predictions?"
As teens, what innovation adults thought would happen by the time they turned 65:
Flying cars was #1 at 28%, then human robots (bit harder, eh?), then living on other planets (ditto) and the rest.
Well, as soon as I read that I remember Terrafugia's street-legal "driving plane" (as I would call it) point being the flying car was a backasswards concept. Far easier to get a small plane to drive on the road than to get a car to fly.
So there! The wait is over!