Levi Strauss, anthropologist in the 1900s, made a theory called binary opposites, which entails that the majority of narratives in media forms such as books and films contain opposing main character. This helps to thicken the plot further and progress the narrative, includes contrast.
- Light and dark
- Right and wrong
- Good and evil
- Sanity and insanity
- Human and alien
- Strength and weakness
- Honest and deceitful
- Silence and noise.
Example of light and dark: (Light side wearing bright colours and the dark side using dark and powerful colours)

Example of right and wrong (Hate you give) police unlawfully shoot man in traffic stop resulting in protests.

Good and Evil (Jungle Book)

Human and Alien (Monsters Inc)
