If we're going to be serious about it, I think flying cars are a terrible idea. Even if they're done entirely on autopilot and have some sort of automatic spherical crash avoidance system that works 100% of the time, machines can fail catastrophically. I'd hate to be in that flying car if the engine goes out. Or underneath it on the ground.

And as far as moon cities, we have no idea if it's even possible to successfully gestate a fetus in the moon's lower gravity and radiation is a massive problem, so I don't hold out much hope for those either.

And when it comes to a hoverboard? I'd fall off and crack my head open.

Oh well. Maybe this future has a few things going for it after all. You're very unlikely to have a flying Dodge Ram fall on your house.