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Quantum Entanglement & Non-locality

In quantum theory, certain physical systems can become “entangled,” meaning that their states are directly related to the state of another object somewhere else. For example if 2 electrons were made together, 1 with spin up and another with spin down, you know you have one of each, but not which is which – until you look.

When one object is measured, and the Schroedinger wavefunction collapses into a single state, the other object collapses into its corresponding state … no matter how far away the objects are (i.e. nonlocality).

Einstein, who called this quantum entanglement “spooky action at a distance,” illuminated this concept with his EPR Paradox. He hated it, but physicists still hold strong to the theory today. May be a bad idea that is wasting our time, maybe not.