decoherent histories

Decoherent histories is a framework in quantum physics that describes how systems evolve over time without requiring a single, definite outcome. Instead of focusing on one precise event, it considers all possible sequences of events (histories) and examines how interactions with the environment cause some of these histories to become "decoherent," meaning they do not interfere with each other. This allows us to understand why classical behavior (like solid objects and definite positions) emerges from the underlying quantum world, by effectively selecting certain histories that appear realized because interference between alternatives is suppressed.