Is the term not about getting so close to real that it's that the remaining shortfall makes us uncomfortable? E.g. something "50% real" is so far off, we psych

Is the term not about getting so close to real that it's that the remaining shortfall makes us uncomfortable? E.g. something "50% real" is so far off, we psychologically dismiss it as a cartoon, drawing, whatever. It's not trying to compete with real. Something "98% real" freaks us out though. Surprised I have not yet seen this link: http://blog.codinghorror.com/avoiding-the-uncanny-valley-of-user-interface/ http://blog.codinghorror.com/avoiding-the-uncanny-valley-of-...