I think it's the training set.

Pretty much every organism with a brain has a sophisticated survival reaction to physical contact with any part of its body, because its brain is trained on nerve signals. Everything with eyes or sonar learns spacial awareness of objects and their proximity, velocity, directoion of motion. I think the clue is that biological brains are trained on a physical world with very complex rules and physics as well as reactions that arise from chemistry.

Words and images, audio and video, even virtual worlds with soft-body physics, are just flat projected shadows of the complexity of the actual world.

> Words and images, audio and video, even virtual worlds with soft-body physics, are just flat projected shadows of the complexity of the actual world.

While true, so too are our senses: https://en.wikipedia.org/wiki/Aristotelian_physics

Edit: and conversely, look how mediocre sensory AI is. A trillion miles of driving experience over the Tesla fleet and reviews treat it like a young adult who only recently passed their test, the Cybercab is heavily geofenced, plus there's recent reports about them not correctly identifying the speed limit.