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There is an important difference. "Flying cars" was always a media and popular culture thing - the vast majority of experts thought they were a long way off, if ever. This is not true of self driving cars.

Self driving cars are also a pop culture thing - and the most aggressive deadlines and comprehensive deployments predictions are unlikely.

Let me take the contrarian side and say you will have small 1-2 seat Self-Flying vehicles before Self-Driving Cars.

Except flying cars would require an entirely new transportation infrastructure. Self-driving cars adapt to what's already in place.

5 years.