In your mind’s eye

I love the way the mind works. I spent years studying cognitive psychology, which was my college major (I was the psych geek who paid you $3 to sit in front of a computer for 10 minutes and take a test where what I told you I was testing for was not what I was testing for . . . ).

My dad sent me the following link, which is pretty fun.

http://www.patmedia.net/marklevinson/cool/cool_illusion.html