How the Quantum Eraser Rewrites the Past | Space Time | PBS Digital Studios

The video explores the delayed choice quantum eraser experiment, building on the single particle double slit experiment. It delves into the nature of reality and causality, discussing the Copenhagen interpretation and the concept of wave-particle duality. The video explains how attempts to determine the path of particles affect interference patterns and introduces the quantum eraser experiment, which uses entangled photons to explore coherence and decoherence. The discussion includes various interpretations of quantum mechanics, highlighting the complexities and implications of entanglement and non-locality.

What new insight or understanding did you gain from this video?