interesting link this one; it about what might happen if the games becomes too realistic when it comes down to player models Quote:
The Uncanny Valley is a principle of robotics concerning the emotional response of humans to robots and other non-human entities. It was theorized by Japanese roboticist Masahiro Mori in 1970. The principle states that as a robot is made more humanlike in its appearance and motion, the emotional response from a human being to the robot will become increasingly positive and empathic, until a point is reached at which the response suddenly becomes strongly repulsive. However, as the appearance and motion are made to be indistinguishable from a human being's, the emotional response becomes positive once more and approaches human-human empathy levels.
| http://en.wikipedia.org/wiki/Uncanny_valley | 