You are definitely right. But remember that 3D modeling circuitry have evolved a long time ago, because it arises from non-visual senses. This means localizatio

You are definitely right. But remember that 3D modeling circuitry have evolved a long time ago, because it arises from non-visual senses. This means localization of auditory events in space. So say these “beams” are already coming out of peoples —- no, not even people’s, apes — ears to listen for something, like a noise in the jungle. Then when these apes develop something key to detect the human voice, like the superior temporal sulcus, suddenly all our interest is in what sounds come out of other psople’s mouths, so our ear beams go to their mouths instead of, say, looking all around the hanitat, the room, the jungle, whatever it is, for something dangerous that will eat it. I think it’s plausible.