Elon, I beg you. We have worked so hard to get rid of the quantum woo peddling `only when you look' nonsense for so long. In a single tweet you have ruined ithttps://twitter.com/elonmusk/status/1205230908837523456 …
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Replying to @InertialObservr
Sounds like a flimsy analogy but not too egregious imo From Wiki article on Copenhagen interpretation: "physical systems generally do not have definite properties prior to being measured" (maybe he should've said measured vs. observed?) Then again you're the physicist
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Replying to @InertialObservr @tequehead
Even then... to many people, the term 'measurement' without further qualification is still associated too strongly with Copenhagen interpretation 'observer' issues. Perhaps better to just go straight to decoherence.
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Decoherence alone doesn't solve the problem. It simply zeroes all entanglement in a basis that depends on the measurement. It doesn't however say why we observe only ONE specific eigenvalue (for a single event) rather than a weighted average or distribution of all of them.
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right but the point is *that* we only observe a single eigenvalue that is interpretation independent
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That we observe a single eigenvalue isn't what interpretations are about. Interpretations try to explain WHY we do. Which is the whole problem.
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We’re in violent agreement, it seems
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Mostly, besides the detail about "measurement" as a term clarifying anything. I find it obfuscating, instead. It implies the same thing as what Musk said, but also is too cowardly to state it outright.
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Not at all. Von Neumann measurement is as precise a measurement definition you could ask for
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Replying to @InertialObservr @SturnioloSimone and
Of course it doesn’t explain a mechanism, but I never claimed to have a mechanism
2:03 AM - 13 Dec 2019
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