The comic book as a storytelling medium is a remarkable and unique creature. Comic book icons have a flexibility and a capacity for redirection. Characters with solid decades-long histories and worldwide popularity, paradoxically, do not achieve it through a rigid retelling of the same stories, but through their endless ability to adapt their meaning. Well-known heroes and villains are very different people from one decade to the next, or in the hands of different writers and artists. When the way comic books are written undergoes a sea change, it inevitably ripples into all the other storytelling mediums.