Comment by Mawr

> Once there is a robotaxi available to pick up and drop off every passenger directly from a to b, the whole system could be made to be super efficient.

Fundamentally impossible. You're moving some 2 tons of mass in a 2x5m box on polluting rubber tires to move a single 100kg human.

I can always take whatever efficiency gain you've thought up and simply make the vehicle bigger, decreasing the cost and space used per passenger, and maybe even put it on rails, making it less polluting, and more energy efficient.

You can't engineer your way out of the laws of physics.

And don't even get me started on e-bikes.