@Alrik
[color:"orange"] "What kind of screen refresh rate has reality ?"
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An average human eye can successfuly differentaite between two frames if they remain there for more than 20th of a second. Though the continuum assumption stays valid at the relatively lower speeds (as compared to light) we generally move with, hence nature's refresh rate can be expected to be very high. However, the effective refresh rate for us will always remain 20Hz. That's why we see cinema, where frames change at 24Hz as if we were looking at moving objects the way we do in real life.
But I guess, you weren't actually looking for an answer to that question <img src="/ubbthreads/images/graemlins/alien.gif" alt="" /> <img src="/ubbthreads/images/graemlins/biggrin.gif" alt="" />
