Have you ever given up, helplessly, on a Rubik's Cube? A tactile tool originally meant to help students learn about space and design, the cube has since become the object of competition; it's a race to see who can solve the puzzle quickest. Love it or hate it — because who knows if you can actually solve it — the cube is now a staple of popular culture, and it's all thanks to Erno Rubik. Meet the man behind the legacy.