Have you ever seen the take a look at with the mouse and the maze. If you have not that is how it works. A piece of cheese is located inside the hardest area of a maze to get to via a scientist and after setting the cheese the scientist then places a rat into the part of the maze this is considered to be the beginning or starting point.
Upon doing this the scientist will set a timer to peer just how lengthy it takes the rat to get to the cheese. Each time the check is accomplished it is reconstructed in a different way a good way to make it harder and harder for the rat to get the cheese whenever. When the maze is in the end been rebuilt to its toughest possible installation it is then used for the check from then on out.