Quote Originally Posted by Isengard View Post
I keep hearing that we cant distinguish the difference, but I can so easily tell when a game is running at 60fps or at 30. I need that explained to me.
Well, actually it's at about 72fps that is the max before you cant notice a difference

How I understand it is that you can only process 30fps, but doent mean you can absorb more than that in information. You eyes "burn" in the image, but at 30fps, it's exactly what you can process, but be "burnt in image" is a single frame. Increasing this makes more frames "burnt" into the eye, and gives a motion blur effect which your brain is used to seeing. So you can tell that it seems "smoother" because of the motion blur (and saturation of colours) that is getting processed. So it feels more natural to your brain.