If we had the ability for humans to safely pilot a flying car at 120mph, we'd have the ability for humans to safely pilot a on-the-ground car at 120mph. All th

If we had the ability for humans to safely pilot a flying car at 120mph, we'd have the ability for humans to safely pilot a on-the-ground car at 120mph. All the traffic collisions that currently happen in 2 dimensions (changing lanes without looking, failure to yield, rear-end collisions) would happen with flying cars but now in three dimensions. And when a collision happens that completely disables the car, it won't just crash in two dimensions, it will plummet to the ground. To prevent that, we'd need dedicated air lanes that cars would have to merge in and out of, and on-ramps where they're only allowed to move up or down at dedicated spots to help with merging. Which we have on the ground already. Yes planes fly fast. They're also piloted by professionals who dedicate their lives to piloting them, controlled by a central ATC tower, and heavily regulated by a governing body. And we still have air disasters. There is zero reason to move cars into a third dimension of travel. If you want "cars but faster", we have a solution for that: cars. But faster.