it's true Spencer AbfallYou nailed it perfectly on the head.
   (why one would want to nail anything on its head, I don't know.
   Ah! A hammer wants to hit a nail on its head. Ok) - It is
   amazing how how we can see a movie, 24 pictures per second,
   mostly flat (photons are really thin - still 3D though) - and we
   see something that reminds us what a person looks like, and they
   are doing or saying certain... things. And we get feelings and
   react as if either: a) there is really a person right there and
   this is happening to them - or, more commonly b) we put
   OURSELVES in the hero's body and *we react* like we're
   underwater for example."