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"According to quantum physics, a system can be in a 'superposition,' which means that it can be in more than one state at the same time--a particle can be in two places at once, and Schrödinger's famed cat (at least in theory) can be both alive and dead."
No it doesn't mean that. Even Schrödinger, working nearly a century ago and without the advantage of subsequent conceptual and mathematical clarification of the theory, knew better and in fact used his famed cat to warn against that most egregious misinterpretation:
"It is typical of these cases that an indeterminacy originally restricted to the atomic domain becomes transformed into macroscopic indeterminacy, which can then be resolved by direct observation. That prevents us from so naively accepting as valid a "blurred model" for representing reality."