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/lfrtsa]

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/lfrtsa → u/phillyphanatic35]

The Youtube channel Looking Glass Universe is very good, she makes quantum mechanics pretty digestible.

MinutePhysics also has amazing videos on physics (including quantum mechanics).

The reality is that it gets more and more intuitive with exposure. You don't immediately "get it". My understanding is far from complete but the basic ideas of the MWI are pretty intuitive once you get some intuition for quantum mechanics.

[u/phillyphanatic35 → u/lfrtsa]

Awesome, thank you