Exploring the Mirror Link Between Two Geometric Worlds
Twenty-seven years ago, a group of physicists made an accidental discovery that flipped mathematics on its head. The physicists were trying to work out the details of string theory when they observed a strange correspondence: Numbers emerging from one kind of geometric world matched exactly with very different kinds of numbers from a very different kind of geometric world. To physicists, the correspondence was interesting. To mathematicians, it was preposterous.