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RARITY. “Quantum mechanics occupies a very unusual place among physical theories: it contains classical mechanics as a limiting case, yet at the same time it requires this limiting case for its own formulation.” https://lnkd.in/eauD5rnp View in LinkedIn

SMALLEST LENGTH. “Bohr emphasized that quantum mechanics is a rational generalization of classical mechanics, among other reasons because the formal expression of classical mechanics can be derived from quantum mechanics in the limit where all actions are large compared to Planck’s constant.” https://lnkd.in/eauD5rnp View in LinkedIn

CONTEXT. “This idea of contextualism can be seen as analogous to the standard idea of wave-particle duality which holds that whether, e.g., an electron is a wave or a particle depends on the experimental context.” https://lnkd.in/eauD5rnp View in LinkedIn

SITUATIONAL ABOVE ALL. “But Bohr also rejects ontological quantum fundamentalism if this is taken to mean that objects are ultimately represented correctly by a wave function. Both because the wave function is symbolic, and because the answer to what an object is, quantum or classical, depends on the context.” https://lnkd.in/eauD5rnp View in LinkedIn

THE FENCE. “This reading of Bohr’s viewpoint might be called restricted quantum universalism. It implies that Bohr rejects epistemological quantum fundamentalism since, in a given experimental context, part of the total system – usually the measuring device – must necessarily be described as classical.” https://lnkd.in/eauD5rnp View in LinkedIn

EITHER OR, NOT BOTH AND. “I think Bohr’s view can be summarized in the claim that any system may in principle be seen as and treated quantum mechanically, but not all systems can be seen as and treated in this way simultaneously.” https://lnkd.in/eauD5rnp View in LinkedIn

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CONTRADICTORY DATA. “In the field of psychology, cognitive dissonance is the perception of contradictory information. Relevant items of information include a person's actions, feelings, ideas, beliefs, values, and things in the environment. Cognitive dissonance is typically experienced as psychological stress when persons participate in an action that goes against one or more of those things.” https://en.m.wikipedia.org/wiki/Cognitive_dissonance View in LinkedIn

THE LINE. “Bohr insisted that when a measuring apparatus, or parts of it, is treated quantum mechanically, there must then always be a different system which is treated classically.” https://lnkd.in/eauD5rnp View in LinkedIn