This is kind of a standard one, isn’t it? Try watching some reports on the Heathrow climate camp on the news, and sooner or later, there’ll be a segment with a talking head, with the big rotating airport radar in the background. Try figuring out which way it rotates. Then stare at it until it changes.
Then try to work out where you stand on the climate camp. YOU DON’T KNOW BECAUSE YOU WERE TOO BUSY LOOKING AT THE RADAR! Sucker!