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How Bell’s Theorem proved ‘spooky action at a distance’ is real

quantamagazine.org

1–10 of 356 posts

Re: How Bell’s Theorem proved ‘spooky action at a distance’ is real

#2
> really permits instantaneous connections between far-apart location

The phrasing in this article is tricky, as it wasn't FTL communication that was proven; just that there are correlations between things that would require FTL communication, were they classical processes. This is an important point: https://xkcd.com/1591/

Re: How Bell’s Theorem proved ‘spooky action at a distance’ is real

#3
If we were in a simulation, would the speed of light be the processing speed of the universe as each area re-renders, and spooky action at a distance be two variables pointed to the same memory location, populated with a lazy-loaded value, with copy-on-write semantics?

edit: seems like it is lazy loaded, so revised my summary.

Re: How Bell’s Theorem proved ‘spooky action at a distance’ is real

#4
What is the prevailing theory to explain quantum entanglement? Must there be another dimension we cannot access or measure that is not subject to the laws of relativity? (I understand the laws of relativity break down at the quantum level but please ELI5)

Re: How Bell’s Theorem proved ‘spooky action at a distance’ is real

#5

What is the prevailing theory to explain quantum entanglement? Must there be another dimension we cannot access or measure that is not subject to the laws of relativity? (I understand the laws of relativity break down at the quantum level but please ELI5)

I’d probably start here: https://youtu.be/ZuvK-od647c

Re: How Bell’s Theorem proved ‘spooky action at a distance’ is real

#7
post #3

If we were in a simulation, would the speed of light be the processing speed of the universe as each area re-renders, and spooky action at a distance be two variables pointed to the same memory location, populated with a lazy-loaded value, with copy-on-write semantics? edit: seems like it is lazy loaded, so revised my summary.

It’s more like two variables pointing to an uninitialized value that’s lazily randomly generated on dereference. And copy-on-write.

Edit: OP edited their original comment to be more accurate.

Re: How Bell’s Theorem proved ‘spooky action at a distance’ is real

#8
post #3

If we were in a simulation, would the speed of light be the processing speed of the universe as each area re-renders, and spooky action at a distance be two variables pointed to the same memory location, populated with a lazy-loaded value, with copy-on-write semantics? edit: seems like it is lazy loaded, so revised my summary.

It's not really immutable as you can change the parameters of an entangled pair. You just can't communicate any information by doing so, because you need a classical signal to make sure you don't read one of the particles the wrong way.

Re: How Bell’s Theorem proved ‘spooky action at a distance’ is real

#9

What is the prevailing theory to explain quantum entanglement? Must there be another dimension we cannot access or measure that is not subject to the laws of relativity? (I understand the laws of relativity break down at the quantum level but please ELI5)

There isn't really an "explanation" for quantum entanglement. It is a fundamental property of the universe, arguably the fundamental property of the universe. But the Right Way to think about it IMHO is this: the quantum wave function is not defined over physical space, it is defined over configuration space. A wave function defined over physical space is a special case that pertains when you are dealing with a system consisting of a single particle, in which case physical space and configuration space are the same. But as soon as you add a second particle, this physical intuition breaks down.

You might also want to read this:

https://flownet.com/ron/QM.pdf

Re: How Bell’s Theorem proved ‘spooky action at a distance’ is real

#10
post #3

If we were in a simulation, would the speed of light be the processing speed of the universe as each area re-renders, and spooky action at a distance be two variables pointed to the same memory location, populated with a lazy-loaded value, with copy-on-write semantics? edit: seems like it is lazy loaded, so revised my summary.

You're probably interested in something more like the holographic universe hypothesis. Under that hypothesis, I believe "entangled particles" end up staying close to each other in the projected space. 3D space in that case would be an "emergent phenomenon" that isn't necessarily the "base data structure" of the simulation.
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