Wired News: Monsters of Photorealism

Wired News: Monsters of Photorealism: "But when human avatars approach photoreality? Something weird happens. Our brains rebel, and we begin focusing on the tiny details that aren't quite perfect. The realism of our avatars suddenly plunges downward into a valley -- and they begin to look like zombies."

He is not the first one to comment on this. At a certain level of "reality" our brains are hardwired to expect that the object of our attention will behave in specific ways. When that doesn't happen a special kind of cognitive dissonance occurs.