Branching universes

Branching universes, also known as the many-worlds interpretation of quantum mechanics, suggest that every time a quantum event occurs—like an atom decaying or a particle changing state—the universe splits into different versions, each representing a different outcome. Instead of a single wave of possibility collapsing into one result, all possibilities happen in separate, parallel branches. This means that every possible outcome of every event exists in its own universe, creating a vast multiverse where all possible histories coexist without interacting. It's a way of explaining quantum randomness without losing the determinism at the universe's core.