If you watch American news then you're well aware that March Madness is upon us. But did you know that there are nine quintillion ways you can fill out that NCAA basketball tournament bracket?
Math professor Jeff Bergen shows the calculations behind achieving a perfect bracket.
He says your chances of being perfect are more like 1 in 128 billion if you know something about NCAA basketball. (I think my grandfather fits into this category... he had a second place bracket two years ago and won two pools last year!)
Just some food for thought when you enter that tournament pool!