Quantum EntanglementBy: Jed Brody Series: The MIT Press Essential Knowledge series A concise, non technical exploration of quantum entanglementthe enigma Albert Einstein called spooky action at a distanceand how it contradicts our assumptions about the ultimate nature of reality. Quantum physics is notable for its brazen defiance of common sense. (Think of Schrdinger's Cat, famously both dead and alive.) An especially rigorous form of quantum contradiction occurs in