Post #1960411

@bit101 The brain cannot see continuous motion. In stead, just like a movie camera, we see a stack of still images. So we more or less focus on one or the other rectangle it's why the B&W version works as well. Or covering one end works because your focused on the cover and that which is below it, the motiong then is grouped with all three objects. This effect is very evident if you look out the side window of a car or train while it is in motion or pan your head from L>R or R>L in the smooth be somewhat fast motion. In both cases you will see a staccatto sort of effect in that you will see a blurr, a freeze frame, blurr - repeat as you pan or are carried along. It's a processor conservation issue. Too much data to keep a contiguous stream. And the stills, I suspect, allow a very fast assesstment. Scan the still for danger/friend/foe as you continue seeing the illusion of motion.