Talk:Einstein–Podolsky–Rosen paradox

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Section under "the crux of the matter" is wrong[edit]

The section under "the crux of the matter" is wrong. By only measuring the x or z axis you cannot distinguish between a classical system with hidden variables and a quantum system. One has to measure at 45 degrees also. The description is wrong.

Sorry, I meant to put this somewhere else, but I do not know how to delete this.

Observer as Variable[edit]

The impact of consciousness is unquestioned, how much more abstract is consciousness greater will its power both in size and complexity?


We should add a section about steering in this article. It is a formalisation of the EPR paradox, introduced in the seminal paper of Wiseman et al. arXiv:quant-ph/0612147 (arguably also by Schrödinger back in the day), and it his how EPR is often understood nowadays. Tercer (talk) 15:50, 6 March 2020 (UTC)Reply[reply]

Sounds like a good idea. I think the term steering itself originated with Schrödinger (e.g., It is rather discomforting that the theory should allow a system to be steered or piloted into one or the other type of state at the experimenter's mercy in spite of his having no access to it.) XOR'easter (talk) 17:55, 6 March 2020 (UTC)Reply[reply]
Yep, he did. I'm just saying that it's a bit of a stretch to attribute the current formulation of steering to Schrödinger. Anyway, I just checked, and someone created an article on quantum steering a couple of months ago. It's pretty bad. Also, steering is mentioned in a sentence in the quantum nonlocality article, and in a paragraph in the quantum entanglement article. Tercer (talk) 18:43, 6 March 2020 (UTC)Reply[reply]

"Left" or "fled"?[edit]

Should the "History" section say that Einstein left Nazi Germany or fled Nazi Germany? The rationale for the former was read the sources; check what WP itself says; and don't be so dramatic - take a look at weasel [1]. But "flee" and "flight" are used in reliable sources (e.g., [2][3][4][5][6]), Wikipedia is not a reliable source for itself, and WP:WEASEL is a warning against text that is vague or evasive, which doesn't seem to apply here. XOR'easter (talk) 19:59, 28 June 2021 (UTC)Reply[reply]

  • The source added to justify "left" instead of "fled" is about Einstein skedaddling at the last possible moment (less than two months before Hitler became Chancellor), after the Nazi rise was obvious. I'd say that "fled Nazi Germany" is an acceptable shorthand for "fled Germany when the Nazis were the largest party in the Reichstag, Hitler was heading a coalition government and the writing was on the wall"; perhaps a slightly more detailed phrasing like "fled the rise of Nazi Germany" would be a bit better. XOR'easter (talk) 23:30, 28 June 2021 (UTC)Reply[reply]

Consequences of Bell's Inequalities[edit]

The consequences of Bell's inequalities are presented incorrectly. Bell's inequalities require the assumption of statistical independence -- that is, the libertarian free will of the experimenter to choose the settings of the experiment. This is a fundamentally unscientific assumption (as it violates methodological naturalism, an absolute requirement of any scientific approach). Even John Bell himself in a BBC interview in 1985, pointed out that a complete and total absence of free will (by which he specifically meant libertarian free will as compatibilist models don't provide the sort of freedom needed) would allow local realism to still hold in the form of superdeterminism. Despites claims of loophole-free Bell experiments, it is literally and proofably impossible to rule out superdeterminism (and in fact, it's effectively necessary to maintain the methodological naturalism on which science depends). Lrwerewolf (talk) 15:22, 22 October 2022 (UTC)Reply[reply]