If you stare at the crosshair long enough, you will see a green dot moving around the purple dots. If you keep staring, eventually the purple dots disappear and all you see is the nonexistent green dot.
Fascinating 'Illusions' Fool Our Brain The brain is a wonder. Not only does it control all the millions of things happening in our bodies as we go through the thousands of daily movements. In the background, it also interperts all the sensory informa.
19 Mind Bending Illusions That Won't Make Sense The First Time