But... we know what quantum entanglement is. 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.

You're interested in exploring what entanglement means, and I think that is a fool's errand. 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. Now I'm similarly agnostic about metaphysics because I think it's simply unknowable. It's like asking "Why is the universe the way the universe is?". All we can do for certain is accept that we have a relatively good understanding of how the physical universe works, use the maths to make good predictions and improve our technologies, and entertain the possibility that the answers to some of life's biggest questions are forever left for user interpretation, no matter how technologically advanced we become.

Wanna really cook your noodle? Let's say that the big bang is factual, and that all of the universe's energy was thus concentrated at a single point, at a single moment. Well, then all of the resulting forms matter and energy was initially entangled. We have no idea how to handle that idea with physics and math, which begin to break down / have inconsistencies in the era of hyperinflation, 1 x 10⁻³⁶ (lol what is that unicode??) seconds after the singularity. Of course, the universe immediately began to interact with itself, which causes decoherence, and related things like increasing entropy, which we associate with the direction of increasing time. So I guess you could literally make the argument "iT's aLL cOnNeCtEd MaAaAaAAaNn" with our current understanding of physics.

BTW, I think the one-way flow of time is possibly a condition imposed on consciousness, i.e. large, coherent systems of interacting energy and matter (neural activity, in our case). 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. But there are certainly rules, in this universe. No idea why. Or how. And we don't know where the anti-matter in the universe is, of course, there should be just as much as regular matter, and we can't find it.

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

edit: the unicode is fine on my phone but funky in my browser. cool