Let's discuss views on non-locality and entanglement, okey?

Well, first off, entanglement is not non-locality. Entanglement has to do with the separability of the states of multi-particle systems. Non-locality only comes into play in an interpretation of an aspect of entanglement. But if you are specifically wondering about the 'spooky action at a distance' and how that comes into play in our everyday lives, I would say it doesn't. Sure, it has some roll to play at the atomic and sub-atomic level, but that role does not extend much beyond the molecular and certainly not to the cellular size scales. And absolutely not to the human size scale. So, beyond the small perturbations to energy levels at the atomic level, I would say it has no effect on our every-day lives. Unless your everyday life involves the study of quantum physics, then it becomes an academic matter.

One thing that I have never really understood is why people claim a link between entanglement and non-locality. It is not as if the property of entanglement allows one particle to act upon the surroundings of a distant particle. There is a link there, but not a link that allows action. Entanglement can not be used to communicate super-luminally. Where is the action? I think that is a misnomer.

In fact, as I see it, the entanglement is the thing that exists across the gap between particles. The spatial exent of entanglement increases a luminal or subluminal speeds (it increases when you physically move the entangled particles apart). And entanglement is a form of information, not action. It has to do with what you know about the system, not what the system can do.

I think there are a lot of weird things in quantum mechanics. But this whole entanglement/non-locality issues seems to me to be wrapped up in much larger issues about how information passes between systems, and is not an example of things that act non-locally.

And, in my opinion, string theory is a fun exercise in mathematics. But it is not a physical theory. And I lean more to quantum gravity concepts.

ADDITION:

I have to say there is something in the semantics of this topic that I do not like. In that paper you reference, they refer to one GHZ prediction as 'local realism' and the other as quantum mechanics. And I agree with that terminology. I also agree that quantum mechanics and the world does not obey local realism as they describe it in that paper. But to extend the terminology to 'non-locality', I do not like that. To me, non-locality requires an object or process here to affect an object or process there, without having some intermediary. And I guess I just don't see these GHZ or Bell type experiments doing that. Even with the GHZ experiment, there is no way to send information. The only thing that you can get is simultaneous knowledge of the distant particles. But still, the measurement on the first and second particles is not passing information, so is not 'non-local'. From my view, when you create your GHZ state, you are projecting into reduced state space... into an entangled state. Then when you let the particles fly apart and that entangled state expands at the speed of the particles. Then you make a measurement, and further project the state into a smaller space. To the extent that that entangled space is not localized and extends over space, I agree this is non-locality. So from that standpoint, I can see why they, and you, might call it that. But I still would like some influence from one particle on another, which does not exist, before I would be happy calling it non-locality. I want a non-local force. So, perhaps I just do not like the terminology.

often used relativity and quantum mechanics the two artwork very nicely on their respective scales (in the event that they did no longer, we does no longer have GPS or MRI machines) - they are the two precise - they do exactly no longer mesh once you attempt to scale them to a minimum of one yet another. and that's a no-no in physics - they ought to agree. They do agree in case you suspect approximately yet another 9 dimensions, yet we don't comprehend for advantageous those exist, so as that may not be the answer. we are going to must wait and see the consequences of a few experiments coming up interior here couple of years to work out if the greater dimensions can artwork as a actual answer (LISA and the LHC). The subatomic particle test you're conversing approximately got here approximately in the Canary Islands final 3 hundred and sixty 5 days, and specific, it worked. What we've are 'entangled' debris - the state of one particle relies upon on the state of the different, so in case you degree considered one of them the different is immediately replaced consequently - no depend the area between them, it happens straight away. whilst this is been called 'quantum teleportation' there is quite no substitute of debris, and not something is shifting. purely the state of the particle has replaced. yet we are able to think of this could sometime be used for conversing for the time of super distances.

i dont understand why the universe has to fit in a box. define a measurement when the sun wasn't created till the 4th day.

I think string theory has some merit to it!