"As an aside, it’s interesting that part of the way that we’re designing computers to see actually meshes with the way children think *we* see. There’s this thing, the emission theory of sight, which is where our eyes reach out into the world and paint it into being. Which is pretty much what IR depth cameras like the Kinect do, spraying a pseudorandom dot grid out into the world at frequencies that aren’t visible to us, bathing the world in little photonic tentacles that reflect back and describe the shape of the world to them. Our eyes don’t see like that, of course, we don’t emit anything and merely receive reflected photons on our retina. But isn’t it interesting how we’re solving the problem for the intelligence we’re creating.)"