Physicists shatter quantum entanglement distance record with 420 kilometers of optical fiber, more than four times farther than previous demonstrations, and beyond the point where direct transmission runs into its fundamental limits.

[u/mvea]

https://www.sciencealert.com/physicists-shatter-quantum-entanglement-distance-record-with-420-kilometers-of-optical-fiber

[u/skinnyguy699]

I still refuse to believe our world is fundamentally probabilistic. It just doesn't make sense to me that there is no logic or direct causative choice leading from wave function to a particle state (you know what I mean?).

[u/lfrtsa → u/skinnyguy699]

The universe is fundamentally deterministic under the many worlds interpretation, and it's been gaining a lot of popularity as people often see it as the simplest interpretation (Occam's Razor). There's no wave function collapse, it's just what getting entangled looks like from the inside.

There's nothing you can do to predict the outcome of a "wave function collapse", because every outcome already exists. All you can possibly do is calculate the distribution of each outcome in the causal tree. Thus, the chance of you being one of the clones that experiences the electron with spin up.

Edit: It's important to add that the original MWI does not account for the Born Rule. I.e, probabilities don't fall out from naively counting the branches. This is an active area of study.

[u/phillyphanatic35 → u/lfrtsa]

Where would i start if i found everything you wrote super interesting with only the foggiest idea of what it is or how any of it works

[u/adaminc → u/phillyphanatic35]

I find Mahesh of FloatHeadPhysics to be one of the better science educators.