Hello friends, Try this its very amazing.... If your eyes follow the movement of the rotating pink dot, you will only see one color, pink.
But If you stare at the black + in the center, the moving dot turns to green. It's amazing isn't see how our brain works. There really is no green dot, and the pink ones really don't disappear.
This should be proof enough that
we don't always see what we think we see.
Enjoy