Over 17 years and dozens of movies and TV shows, Marvel Studios has made a series of meaningful retcons to the MCU.

Disclaimer: Like Natasha Romanoff herself—relentless, complex, and too often misunderstood—this piece pulls no punches. It is a work of critical interpretation, not casual commentary.

The MCU fans might never get tired of their speculative theories, and the latest Avengers: Doomsday-related theory might spoil the Avengers: Secret Wars for them.