" For generations, four minutes was thought to represent an intrinsic physiological limit, as if muscles could inherently not be made to move any faster or lungs breathe any deeper. What Bannister proved was that such notions about intrinsic boundaries are mythical. What he broke permanently was not a limit, but the idea of limits. "

― David M. Ewalt , Of Dice and Men: The Story of Dungeons & Dragons and the People Who Play It