Endgame presents a version of quantum‑realm travel that lets the Avengers retrieve the Infinity Stones from different points in the MCU timeline. Unlike classic “go back and fix everything” stories, the film insists each trip creates a branching reality, keeping the original timeline intact while allowing a new one to form.
Golden Notes walks you through why that distinction matters, how the writers stitched together dozens of prior movies, and what the consequences are for characters like Loki, Captain America, and the future of the multiverse.