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INCORRECT ASSUMPTION. “Bohr’s viewpoint, it would mean to assert that an object in itself is a quantum system. An obvious suggestion would be to think that the deep nature of objects is correctly represented by quantum wave functions. But Bohr could not have supported this idea.” https://lnkd.in/eauD5rnp View in LinkedIn

ELUSIVE REALITY. “Bohr emphasizes what one can say about nature, and rejects the question of how nature is in itself. This is consistent with the fact that Bohr almost always stresses epistemological rather than ontological aspects of quantum mechanics.” https://lnkd.in/eauD5rnp View in LinkedIn

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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