Yowza, that went 0-100 real quick. You know, if I was being deliberately obtuse to the thesis of your video, I would say that the end scenario could again evolve. The cars could be coalesced into bigger longer cars for efficiency and savings on battery, air resistance and electronics. They could run on pre defined schedules based on known demand patterns. You could even replace the rubber tires and the asphalt with steel tires and tracks for better efficiency.