Magic cool illusion (ảo ảnh)

- If your eyes follow the movement of the rotating pink dot, you will only see one color, pink.
- If you stare (nhìn chằm chằm) at the black + in the center, the moving dot turns to green.
- Now, concentrate on the black + in the center of the picture. After a short period of time, all the pink dots will slowly disappear, and you will only see a green dot rotating if you're lucky!

- It's amazing how our brain works. There really is no green dot, and the pink ones really don't disappear.

This should be proof enough, we don't always see what we think we see. That's the point I'd like to share :)

(P/S: Sorry, I don't remember the source of this picture, I got it from a friend sent by YIM since 2007 when I was in LTRC)
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