Pizza
The pizza's capacity for adaptation represents perhaps its most remarkable characteristic. From the thin, charred crusts of Naples to the deep-dish excavations of Chicago; from the minimalist Japanese interpretations to the maximalist Brazilian creations featuring everything from chocolate to catupiry cheese—pizza has demonstrated extraordinary evolutionary flexibility. Regional variations number in the thousands, each claiming legitimacy within the broader pizza canon. The format has proven adaptable to every dietary restriction: gluten-free bases, vegan cheeses, low-carbohydrate alternatives. Pizza has colonised breakfast menus, invaded dessert courses, and established itself in frozen food aisles and gourmet restaurants with equal success. This adaptability ensures its perpetual relevance.
Superman
Superman has undergone significant adaptation since his 1938 debut, though such changes often prove controversial among devotees. His powers have fluctuated—early Superman could merely leap tall buildings, whilst later iterations fly effortlessly through space. His moral absolutism has been reimagined for contemporary sensibilities, with modern interpretations exploring ethical ambiguity and psychological complexity. Elseworld stories have relocated him to Soviet Russia, Victorian England, and countless alternative timelines. Film and television adaptations have offered varying interpretations. Yet each significant deviation from established canon risks alienating dedicated followers who maintain rigid expectations regarding the character's essential nature.