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Quantum mechanics is the most useful and powerful theory physicists have ever devised. Yet today, nearly 90 years after its formulation, disagreement… - Nathaniel David Mermin
" "Quantum mechanics is the most useful and powerful theory physicists have ever devised. Yet today, nearly 90 years after its formulation, disagreement about the meaning of the theory is stronger than ever. New interpretations appear every year. None ever disappear. … The message from QBism is this: You needn't feel guilty about never getting nervous about this stuff. You were right not to be bothered. But for the sake of intellectual coherence, you had better reexamine what you wrongly may have thought you understood perfectly well about the nature of probability.
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About Nathaniel David Mermin
N. David Mermin (born March 30, 1935, in New Haven, Connecticut, USA) is Horace White Professor of Physics Emeritus at Cornell University
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N.D. Mermin
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Additional quotes by Nathaniel David Mermin
It once made sense to exclude the scientist from scientific explanations of the physical world. This warded off superstitious, animistic, or religious explanations. But without endorsing superstition, animism, or religion, today it makes sense to insist that the scientist should not be excluded from a philosophical understanding of the nature of scientific explanation. Why shouldn't such an understanding involve the explainer, as well as the explained?
It is a fundamental quantum doctrine that a measurement does not, in general, reveal a pre-existing value of the measured property. On the contrary, the outcome of a measurement is brought into being by the act of measurement itself, a joint manifestation of the state of the probed system and the probing apparatus. Precisely how the particular result of an individual measurement is brought into being—Heisenberg's "transition from the possible to the actual"—is inherently unknowable. Only the statistical distribution of many such encounters is a proper matter for scientific inquiry.
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