P&L AI

  Reality Without Spooky Action: How Relational Quantum Mechanics and Quantum Darwinism Reframe Bell’s Paradox** The 90-Year-Old Problem That Refuses to Die Quantum mechanics works spectacularly well. It predicts spectra, semiconductors, lasers, and quantum computers. Yet since the 1930s, physicists have argued bitterly about what it says about reality itself . The dispute began with Einstein, Podolsky, and Rosen (EPR) . Their concern was simple and deeply physical: If physics is about reality, then distant things should have their own real states, independent of what we do elsewhere. Quantum mechanics seemed to violate that idea. When two particles are entangled, measuring one lets you predict the outcome of the other instantly, no matter how far apart they are. Einstein famously called this “spooky action at a distance.” Einstein was not objecting to randomness. He was objecting to the idea that reality itself might not be locally well defined . Bohr’s Answer — and W...