If your eyes follow the movement of the rotating pink dot, the dots will remain only one color, pink. .........
However if you stare at the black ' + ' in the centre, the moving dot turns to green..
Now, concentrate on the black '+ ' in the centre of the picture. After a short period, all the pink dots will slowly disappear, and you will only see only a single green dot rotating.
It's amazing how our brain works. There really is no green dot , and the pink ones don't really disappear. This should be proof enough, we don't always see what we think we see.
Send this to all of your friends and amaze