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comment by Devac
Devac  ·  626 days ago  ·  link  ·    ·  parent  ·  post: Quantum entanglement of two ATOMS (not photons) over 20 mile distance

    Quantum entanglement is quantum entanglement. We have the mathematics that allow us to describe the relatively complex system of two entangled atoms, and we have obviously designed an experimental setup and procedure that allows us to do it.

That seems like the sanest way of approaching it as physicists, but talking about underlying causes is hardly an idle topic. Not linking anything because I am sorely behind on literature, but I'd like to have this topic going.

    I used to not understand why physicists defaulted to the Copenhagen interpretation and moved on with their lives, instead of exploring the metaphysical ramifications of quantum mechanics.

Hah! They hardly did that, a fact more apparent the deeper you go. The dispute is ongoing, and I can link you some recent pissing matches between physicists disagreeing (I have heaps more, most come to me via GoogleScholar Alerts), to my knowledge/interest, mainly regarding "what happens when wavefunction collapses" or "what causes wf collapse?" It may seem like that isn't the case because what's talked about is pretty much: 1) string theory and assorted GUT/ToE candidates, 2) quantum information/computing (with a dash of informational/mathematical universe), and the rest is stuff even Quanta/PBS Space Time can't make digestible. And, as with any intellectual pursuit, the dispute ranges from good exploratory effort to... well, you decide.

I think the consensus on Copenhagen Interpretation is simply it being the most robust mental model with the least non-obvious kinks, though like any such thing, it is best to be kept at arm's length. Doing maths and observation take precedence over conformity to any interpretation, but that's just the nature of actually doing physics. Doesn't mean a conversation can't be had.

    Whether an anti-person living in a possible anti-matter sector of the universe would experience time flowing backwards or decreasing entropy relative to our "forward moving" perspective is unknown, I think.

Potentially (heh), that's a different class of problems, man. TL;DR: I honestly haven't read enough on the subject, but if time would be a consequence of curvature/gravity, then I don't think dominant matter type would have much to say on time direction, perceived or otherwise.

    Tagging Devac, totally absolutely just for the unicode oddity, he hates physics (plz correct me if I'm mistaken).

Damn straight! I only became a physicist because matadors require a full-color vision.