Claude Levi-Strauss was a French anthropologist who developed the theory of "binary oppositions," which argues that humans understand concepts based on their opposites. Examples include good vs. bad, power vs. weak, man vs. woman. Media like early Star Wars portrayed simple binary oppositions through clearly good or bad characters, while later works like Twilight became more complex. Harry Potter effectively used binary oppositions through imagery that clearly divided the protagonist and antagonist. All narratives rely on some form of binary opposition as the basis of their conflict.