You could build legs for cars. It's harder, yes, but it can be done. // Your argument doesn't work against his point. The fact is that yes, a computer could, in

You could build legs for cars. It's harder, yes, but it can be done. // Your argument doesn't work against his point. The fact is that yes, a computer could, in theory, gain a calculable 3D perspective of the world without the need for distance estimation scanning. It could start with the assumption already... but it helps to use two eyes.