Take this test, as pointed to by the super blog, Freakonomics. Which way is the dancer spinning? Are you a left-side brain person or a right-side?
The first five times I went to that site, no matter what I do, the dancer always spins counter-clockwise to me. I just went back to write this post and it’s going clockwise now. I just turned it back. Now it’s back to counter. The cynic in me believes it’s just a trick, that the maker of this little animation just makes it randomly go clockwise and then counter, to try to trick people.
What do you see?