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This is an excellent question! The nature of “motion” has always been mysterious. People have wondered how a rigid object can move at all, noting that it at one time is in one location and at some later time in another location, but how does it transit between these locations? Does it do it in a stepwise manner, or does it somehow change its shape and move ...


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The collapse of the wavefunction is not a real physical process. It's a feature of a particular interpretation of quantum mechanics, the Copenhagen interpretation (CI). Other interpretations, such as the many-worlds interpretation (MWI), don't have such a collapse. The different interpretations make the same predictions about all observables, and therefore ...


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No, a non-physical conscious observer is not required to explain the collapse of a quantum wavefunction (a perspective called the "Von Neumann-Wigner interpretation"), because wavefunctions don't ever actually collapse. The quantum state of the combination of a quantum system and its environment always evolves purely unitarily, with no true collapse. The ...



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