Is it not? Yes we have 2 eyes, but if you watch TV you can process depth from various cues. Whereas if you're driving in fog and all you can see is headlights a

Is it not? Yes we have 2 eyes, but if you watch TV you can process depth from various cues. Whereas if you're driving in fog and all you can see is headlights ahead, it's difficult to judge distance because you don't have those cues. I suspect 2d only scanners is a symptom of a deeper problem. It's essentially (premature) optimision for an unsolved problem. And they're underestimating the problem. How long is it before a car can read the cues of a pedestrian that may or may not be about to cross the road without looking, or a dog or a teenager. Has that car stopped because there's something blocking the way, or have they just pulled over without indicating? Is the person just ahead that is driving unusually about to pull into your lane? The long tail of edge cases is just impossibly long.