Why is superdeterminism not the universally accepted explanation of nonlocality?

In summary, the conversation discusses the concept of nonlocality and entanglement in a deterministic universe, where the information about instantaneous transfer is known to the universe. The conversation also touches upon the idea of superdeterminism, which some people reject due to its conspiratorial nature and lack of a concrete scientific theory. The possibility of interpreting nonlocality as an answer rather than a problem is also mentioned, as well as the importance of keeping beliefs aligned with measured reality. The conversation concludes with the suggestion that it may be better to believe in the existence of random and non-local phenomena rather than inventing longer explanations.
  • #211
DrChinese said:
Actually, there are QM interpretations in which time does not flow in the conventional sense. These are called "block world". I happen to be something of a fan of a particular one of these, called Relational Block World.

Relational Blockworld: A Path Integral Based Interpretation of Quantum Field Theory; W.M. Stuckey, Michael Silberstein, Timothy McDevitt (2009)

Although time does not flow, the future is a component in interactions and it is the total setup that is relevant. Although the authors do not call it a time symmetric model per se, I think it qualifies.

For those that are interested:

The above paper is advanced reading, but it is absolutely fascinating in this sense: It is a QM interpretation that makes predictions that are slightly DIFFERENT than standard QM. Incredibly, those predictions seem to account for experimental evidence in favor of an accelerating expansion of the universe WITHOUT adding otherwise new physics.

Easily the most ambitious program I have seen in the few years. So a tip of the hat to the authors, good luck! If anyone wants to discuss, we can start a new thread on that.

isnt block time like a 100 year old concept btw
 
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  • #212
DrChinese said:
Well, golly. Perhaps you can share this with us. What exactly is this law? Can you cite a reference? Does it have anything to do with entropy (which increases to the future, see 2nd law of thermodynamics)? :smile:

At any rate, you continue to throw out terms without understanding their meaning. At this point, I, lugita15. Delta Kilo and others have tried to help you with the physics involved. You seem to reject this in favor of speculation which lacks any basic background study or consideration. Your billiard ball example is typical, as it doesn't explain Bell test results and never will.

So good luck, and again I recommend you do some more study in the area.

yeah information is not created or destroyed in a system.
 
  • #213
jadrian said:
choice has no meaning. but what is this delayed thing you are speaking of
Let me give you a simple example of delayed choice. I assume you're familiar with the double slit experiment. If you don't put detectors at the two slits, then when the light hits the screen it will form an interference pattern, as if it went through both slits. But if you put detectors at the slits to find out which slit the light goes through, then you'll find that the light only goes through one slit, but now it won't display an interference pattern, so it seems like it really went through only one slit. So apparently depending on whether you put detectors at the slits, the light will either go through one slit or both slits.

But you can throw a complication into all of this by not putting the detectors at the slits themselves, but at a significant distance past the slits, so that you find out what slit the light went through after it's already gone through the slits. If you do this, you'll find that the light only goes through one of the slits, and you'll find no interference pattern on the screen. So it's as if the light made up it's mind as to whether it's past history involved going through one slit or both slits, after it has already gone past the slits!
 
  • #214
Delta Kilo said:
Let's say I decided to run Bell test and choose settings for A based on the address book of Acapulco. For the test to produce the results it does while maintaining local realism, something in the past would have to causally influence both the source of entangled photons in the lab and the early settlers of Acapulco in such a way as to establish a very specific relationship between the two. Just having a causal link is not sufficient, it would have to be a very specific 1-to-1 correspondence. Do you have a theory to explain it?

according to my logic, you answered your own question
 
  • #215
DrChinese said:
This was from post 48, so 140 posts later:

I think jadrian has quite proven me correct about it taking on a religious fervor. And I really didn't need to be clairvoyant to see this coming.

:biggrin:

what does religon have to do with this. your the one clinging to free will. if i was religious, would i be telling you youre a chemical reaction held in homeostatc balance by dna? are you butthurt that i told you your not alive? your like a bulldog baiting the bull of free will
 
  • #216
lugita15 said:
I think I told you earlier that the same theory of quantum mechanics which tells us about the nonlocality of entanglement also tells us that this nonlocality cannot be used by humans to transfer information faster than light. If you have an entangled pair of photons and you send each one through a polarizer oriented at the same angle, then each experimenter cannot find out on his own locally about the effect of the nonlocality. It's only by comparing the results of the two photons that we can see the nonlocal correlation. And one experimenter cannot find out the results the other experimenter found without communicating with him, and presumably that cannot be done faster than the speed of light.

doesnt matter, a nonlocal interaction outside a lightcone that changes my decision to shoot or not based on simplify the angle change heads i shoot myself tails i dont. if this instantaneous info transfer doesn't have the ability to affect any event that can cause other events than the information is noncausal, and this thread is a monumental waste of time. otherwise ill have to sacrifice myself like the cat
 
  • #217
lugita15 said:
jadrian, just try to set up a scenario in which pool balls, just through the local interactions of hitting each other and without any special initial conditions, can produce the right kind of nonlocal correlation required to pass a Bell test. If you're successful, you can give Nobel laureate Gerard t'Hooft a run for his money, because all he's trying to do is create a local determinist theory WITH special initial conditions that agrees with QM, and he's finding it really difficult.

bells tests just show the more you know the more you realize how little you kno
 
  • #218
lugita15 said:
OK, if you're willing to have a nonlocal deterministic theory, then you don't need any conspiratorial elements like special initial conditions. You can be a Bohmian like Demystifier. Bohmians believe that there are nonlocal interactions between particles, but this do not violate relativity, because it can proven that these nonlocal interactions cannot be used by humans to transfer information faster than light. And generally Bohmians don't believe in free will, just like you.

if they can't effect humans then they can't effect anything, otherwise it would causally effect us eventually. don't fall into the conciousness is special trap
 
  • #219
lugita15 said:
For the record, the explanation of superdeterminism you're quoting is mine, not Demystifier's.

oh sorry
 
  • #220
DrChinese said:
(since the entangled state is not real in your book, just an illusion);

. And for the Nth time, I don't know if there is free will or not, that is not an important issue for me and certainly doesn't color my perspective in any way.

when did i say entanglement wasnt real. i can't relate to your analogy.

but saying you don't know if there is free will or not, pretty much means you believe in free will which is funny to me.
 
  • #221
lugita15 said:
Let me give you a simple example of delayed choice. I assume you're familiar with the double slit experiment. If you don't put detectors at the two slits, then when the light hits the screen it will form an interference pattern, as if it went through both slits. But if you put detectors at the slits to find out which slit the light goes through, then you'll find that the light only goes through one slit, but now it won't display an interference pattern, so it seems like it really went through only one slit. So apparently depending on whether you put detectors at the slits, the light will either go through one slit or both slits.

But you can throw a complication into all of this by not putting the detectors at the slits themselves, but at a significant distance past the slits, so that you find out what slit the light went through after it's already gone through the slits. If you do this, you'll find that the light only goes through one of the slits, and you'll find no interference pattern on the screen. So it's as if the light made up it's mind as to whether it's past history involved going through one slit or both slits, after it has already gone past the slits!

or the measurement is having a causal affect on the photon. does the distance of the measurement device to the slit matter? or can it be a mile away
 
  • #222
jadrian said:
but saying you don't know if there is free will or not, pretty much means you believe in free will which is funny to me.

Jadrian, just out of interest, what is your definiton of "free will" which you think doesn't exist?
 
  • #223
jadrian said:
doesnt matter, a nonlocal interaction outside a lightcone that changes my decision to shoot or not based on simplify the angle change heads i shoot myself tails i dont. if this instantaneous info transfer doesn't have the ability to affect any event that can cause other events than the information is noncausal, and this thread is a monumental waste of time. otherwise ill have to sacrifice myself like the cat
Suppose you have a pair of entangled photons, you separate them by a great distance, and put each of them through a polarizer. Then if an experimenter just looks at whether the photon next to him goes through the polarizer or not, he will find that it has a 50% chance of going through, regardless of the angle at which the polarizer is turned. And the other experimenter will similarly see a 50-50 result regardless of the polarizer angle. So if you choose to shoot yourself based on whether the photon goes through, you will have a 50-50 chance of shooting yourself. However, if the experimenters each record the results, and then compare the results with each other, they will find a surprising result: even though the individual results seemed random when considered in isolation, when the behavior of the two photons are considered together we get a correlation. But of course to bring the results together and compare them, and thus to discover the nonlocal correlations, requires either that one experimenter visits the other one or that the experimenters communicate the results to each other. Presumably, neither of these can happen faster than light.
 
  • #224
jadrian said:
bells tests just show the more you know the more you realize how little you kno
Whatever you think of Bell tests, do you think you can reproduce the result of a Bell test using billiard balls? How would you do so?
 
  • #225
jadrian said:
if they can't effect humans then they can't effect anything, otherwise it would causally effect us eventually. don't fall into the conciousness is special trap
The fact that humans cannot use the nonlocal interactions to send information faster than the speed of light does not say anything special about humans, it says something about the interactions. Bohmians believe that there are absolutely undetectable nonlocal interactions between particles, and it is through the use of these hidden interactions that nonlocal correlations occur. It's as if any pair of particles in the universe is on a secret instantaneous telephone connection, and none of the other particles can overhear that connection. (More precisely, Bohmians believe that just like the electromagnetic field and the gravitational field, there is another field called the quantum potential, which extends all over the universe and exerts a force on each particle, making it do the right thing to produce the nonlocal correlation). Thus neither humans, monkeys, robots, random sets of chemicals, or anything else can find out what the entangled particles are saying to each other.

I don't think you should dismiss Bohmian mechanics so casually. This kind of nonlocal determinism may be a better fit for your belief system, rather than having a conspiratorial interpretation in terms of special initial conditions. If you have questions about the Bohmian intepretation, you can ask Demystifier, our resident Bohmian.
 
  • #226
jadrian said:
or the measurement is having a causal affect on the photon.
But the thing is, how can the measurement have a causal effect on what the photon did before it was measured? Presumably, when the photon reached the slits it made some decision about how to go through. How is it that after it has gone through, placing detectors on the upper and lower paths to find out what path it is on will make it seem as it traveled along only one of the paths and thus shows no interference effects? Of course, you can always make the conspiratorial argument that it determined how to go through the slits based on its knowledge of whether it would be detected later on, but DrChinese's point is that this is highly implausible, especially when you realize that measurement decisions can be controlled by almost anything: the weather in London, the locations of houses in Acapulco, the outcome of the U.S. Presidential election, etc. You have to make the case that the election result was caused by particles interacting in such a way as to insure that two puny photons displayed the right kind of nonlocal correlation in a laboratory in Switzerland. And his other argument is, if there is so much nonlocal correlation between everything, why is it that we only witness this correlation when we do Bell tests? (Apparently Bohmians have a good answer to this question for their theory of nonlocal interactions, but I don't know what it is.)
does the distance of the measurement device to the slit matter? or can it be a mile away
No, you can have the measurement device be any distance, even light years away from the slits. (There are cool proposed experiments of performing a delayed choice experiment in outer space, using light from a quasar which had the option of going in two different paths billions of years ago, and the light is only now reaching the earth; based on what detectors we put in space to catch or measure the light, we will presumably be able to either create an interference pattern or not.) In fact, what you can even do is have the light pass through the slits, and then destroy the whole wall with the slits, and then put a detector to find out which slit the light went through.
 
  • #227
DrChinese said:
So 2 things need to be explained: a) how does the lasers know which photons to pair up as "acting entangled"
Duh, the lasers can see the entire future of the universe and know which photons will later be considered entangled according to QM.
;and how does it mark them when they are otherwise identical to "not acting entangled" photons.
Duh, it changes their undetectable hidden variables, which don't have any effect on the particles until an entanglement experiment is done.

DrChinese, let out your inner conspiracy theorist! :smile:
 
  • #228
Demystifier said:
Thanks lugita!
Demystifier, can you answer another question about Bohmian mechanics? DrChinese has been making the critique of superdeterminism that, if everything in the universe is linked because of interactions in their common past light cones, why do we witness this link only when we do quantum entanglement experiments. How would Bohmians answer the analogous criticism? If everything in the universe is interacting nonlocally with everything else through their pilot waves, then why is it that we only observe the nonlocal correlation caused by this nonlocal interaction when we do measurements of entangled particles? Is there something special about entanglement that reveals the nonlocal interactions that are always present?
 
  • #229
@ lugita15,

The exchange between you and I got a little off track. Which was my fault, and I apologize for not taking the time to sort it out properly. Below I'll comment in reference to an exchange between you and zonde, and hopefully any misunderstanding will be clarified.

zonde said:
Linear relationship between θ and correlation level follows directly from that assumption.
lugita15 said:
You're right, it's a fairly direct route from the assumption that there is perfect correlation at identical polarizer settings to the conclusion that the local realist must believe that the correlation is linear. But ThomasT does not agree with this fairly direct line of reasoning, so I'm trying to convince him that it works.
I think that there's some step or steps in the LR line of reasoning which then lead(s) to the logically necessary conclusion that the correlation between θ and rate of coincidental detection should be linear. But I don't think it's the prediction of perfect correlation at θ = 0°. After all, QM predicts the same thing as LR at θ = 0°, but wrt all θ the QM and LR correlations are different. So it seems that we can't attribute that difference to the prediction of perfect correlation at θ = 0°.

zonde said:
Local realistic theory can not reproduce all predictions of QM.
lugita15 said:
If I could persuade ThomasT of this, I'd be done.
I already agree with this, and have said so many times in this thread. But you're not then done. This is where the assessment of the necessity of a local superdeterministic model of quantum entanglement begins.

zonde said:
But local realistic theory can try to reproduce QM predictions in domain where they are experimentally verified. And that domain does not include (something close to) perfect correlations for matching measurement settings.
lugita15 said:
But that just has to do with practical experimental limitations. The point I'm arguing with him about is whether someone can believe that all the predictions of quantum mechanics are correct and still believe in (non-superdeterministic) local realism. I'm trying to show that the answer is no ...
I agree that the answer is no.

lugita15 said:
... because one experimental prediction of QM is perfect correlations at identical polarizer settings, from which the local realist is forced to believe in a linear correlation relationship ...
Ok, now I disagree.

This is the basis of both the QM and LR treatments, but I would argue that, given this perfect correlation (ideally) at θ = 0°, one is not then forced to believe in a linear correlation wrt all values of θ. After all, the QM treatment leads to a nonlinear correlation wrt all θ.

So, given what we do agree on, wouldn't the first step in assessing the applicability of the concept of superdeterminism wrt generating the simplest and clearest possible understanding of why BIs are violated have to do with identifying any and all points in the LR reasoning which lead to the prediction of a linear correlation between θ and rate of coincidental detection?

zonde said:
What I think ThomasT is disputing is that given Malus law it is very unreasonable conclusion that there is linear relationship between θ and correlation level.
lugita15 said:
I agree that this is the point of contention, but keep in mind that he thinks a local realist can believe in the nonlinear correlation given by Malus' law, while at the same time also believing that there is perfect correlation at identical settings.
Ok, I think I see one source of our misunderstanding. I'm not a local realist. That is, I don't think that a viable LR model of quantum entanglement is possible.

But I am a local determinist. I think that both of these assumptions, locality and determinism, are supported by ample empirical evidence. They seem to be the basis of our everyday navigations through our shared reality. And they seem to be the basis for doing physical (essentially mechanistic) science. As far as I can tell, the assumptions of nonlocality and indeterminism arise, more or less ad hoc, from our inability to make viable LR models of quantum entanglement and our inability to predict certain quantum experimental phenomena.

I'm going to stop here, but will pick up, eventually, where I left off, with a brief exposition of the local deterministic approach to understanding quantum entanglement, and then tying it into the thread question. The focus will eventually be on identifying the precise elements in the standard LR formulation (line of reasoning) which are at odds with what's presumably (according to a local deterministic view) occurring in the underlying reality, and how the encoding of certain elements contrary to that view into an LR formalism, and a Bell inequality, necessarily entails the violation of BIs.

Then the question will be: what, exactly, has been proven, and does our understanding of BI violations necessarily warrant the assumption of superdeterminism in order to maintain a local deterministic view of our universe?

Note: It's important to keep in mind that the formal requirement, local realism, is not equivalent to the philosophical orientation, local determinism. The former having to do with what's required to render a model of quantum entanglement explicitly local or explicitly realistic (without any ad hoc associated nonlocal mechanisms or assumptions), or, as with Bell's formulation, both -- and the latter having to do with assumptions about the way our world is, based on extant empirical observations.
 
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  • #230
Joncon said:
Jadrian, just out of interest, what is your definiton of "free will" which you think doesn't exist?

the one where a person thinks his cns isn't governed by causality.
 
  • #231
lugita15 said:
Suppose you have a pair of entangled photons, you separate them by a great distance, and put each of them through a polarizer. Then if an experimenter just looks at whether the photon next to him goes through the polarizer or not, he will find that it has a 50% chance of going through, regardless of the angle at which the polarizer is turned. And the other experimenter will similarly see a 50-50 result regardless of the polarizer angle. So if you choose to shoot yourself based on whether the photon goes through, you will have a 50-50 chance of shooting yourself. However, if the experimenters each record the results, and then compare the results with each other, they will find a surprising result: even though the individual results seemed random when considered in isolation, when the behavior of the two photons are considered together we get a correlation. But of course to bring the results together and compare them, and thus to discover the nonlocal correlations, requires either that one experimenter visits the other one or that the experimenters communicate the results to each other. Presumably, neither of these can happen faster than light.

youre pretty much proving my point. the info is essentially static until reconciled by the experiment, which will always occur slower than c.
 
  • #232
lugita15 said:
The fact that humans cannot use the nonlocal interactions to send information faster than the speed of light does not say anything special about humans, it says something about the interactions. Bohmians believe that there are absolutely undetectable nonlocal interactions between particles, and it is through the use of these hidden interactions that nonlocal correlations occur. It's as if any pair of particles in the universe is on a secret instantaneous telephone connection, and none of the other particles can overhear that connection. (More precisely, Bohmians believe that just like the electromagnetic field and the gravitational field, there is another field called the quantum potential, which extends all over the universe and exerts a force on each particle, making it do the right thing to produce the nonlocal correlation). Thus neither humans, monkeys, robots, random sets of chemicals, or anything else can find out what the entangled particles are saying to each other.

I don't think you should dismiss Bohmian mechanics so casually. This kind of nonlocal determinism may be a better fit for your belief system, rather than having a conspiratorial interpretation in terms of special initial conditions. If you have questions about the Bohmian intepretation, you can ask Demystifier, our resident Bohmian.

i don't dislike bohmian mechanics, and what you are saying is in concert with my position that reality/existence, is not what is, but what HAPPENS. if the nonlocal stuff cannot have ftl effects on its surroundings then it can be regarded as not existing.
 
  • #233
ThomasT said:
@ lugita15,

The exchange between you and I got a little off track. Which was my fault, and I apologize for not taking the time to sort it out properly. Below I'll comment in reference to an exchange between you and zonde, and hopefully any misunderstanding will be clarified.


I think that there's some step or steps in the LR line of reasoning which then lead(s) to the logically necessary conclusion that the correlation between θ and rate of coincidental detection should be linear. But I don't think it's the prediction of perfect correlation at θ = 0°. After all, QM predicts the same thing as LR at θ = 0°, but wrt all θ the QM and LR correlations are different. So it seems that we can't attribute that difference to the prediction of perfect correlation at θ = 0°.



I already agree with this, and have said so many times in this thread. But you're not then done. This is where the assessment of the necessity of a local superdeterministic model of quantum entanglement begins.


I agree that the answer is no.

Ok, now I disagree.

This is the basis of both the QM and LR treatments, but I would argue that, given this perfect correlation (ideally) at θ = 0°, one is not then forced to believe in a linear correlation wrt all values of θ. After all, the QM treatment leads to a nonlinear correlation wrt all θ.

So, given what we do agree on, wouldn't the first step in assessing the applicability of the concept of superdeterminism wrt generating the simplest and clearest possible understanding of why BIs are violated have to do with identifying any and all points in the LR reasoning which lead to the prediction of a linear correlation between θ and rate of coincidental detection?


Ok, I think I see one source of our misunderstanding. I'm not a local realist. That is, I don't think that a viable LR model of quantum entanglement is possible.

But I am a local determinist. I think that both of these assumptions, locality and determinism, are supported by ample empirical evidence. They seem to be the basis of our everyday navigations through our shared reality. And they seem to be the basis for doing physical (essentially mechanistic) science. As far as I can tell, the assumptions of nonlocality and indeterminism arise, more or less ad hoc, from our inability to make viable LR models of quantum entanglement and our inability to predict certain quantum experimental phenomena.

I'm going to stop here, but will pick up, eventually, where I left off, with a brief exposition of the local deterministic approach to understanding quantum entanglement, and then tying it into the thread question. The focus will eventually be on identifying the precise elements in the standard LR formulation (line of reasoning) which are at odds with what's presumably (according to a local deterministic view) occurring in the underlying reality, and how the encoding of certain elements contrary to that view into an LR formalism, and a Bell inequality, necessarily entails the violation of BIs.

Then the question will be: what, exactly, has been proven, and does our understanding of BI violations necessarily warrant the assumption of superdeterminism in order to maintain a local deterministic view of our universe?

Note: It's important to keep in mind that the formal requirement, local realism, is not equivalent to the philosophical orientation, local determinism. The former having to do with what's required to render a model of quantum entanglement explicitly local or explicitly realistic (without any ad hoc associated nonlocal mechanisms or assumptions), or, as with Bell's formulation, both -- and the latter having to do with assumptions about the way our world is, based on extant empirical observations.

i really like ur posts, and you obviously have one hell of a bat upstairs, which is good to know there's some 150s and 160s leaning towards determinism.
 
  • #234
jadrian said:
i really like ur posts, and you obviously have one hell of a bat upstairs, which is good to know there's some 150s and 160s leaning towards determinism.

maybe 170s. there's enough people in the world that its probable u will have people with einstein comparable iq/intuition
 
  • #235
jadrian said:
i really like ur posts, and you obviously have one hell of a bat upstairs, which is good to know there's some 150s and 160s leaning towards determinism.
You mean like "bats in the belfry"? :smile: Hopefully, we can see this through to at least a somewhat satisfying conclusion for everybody. Like, maybe we'll actually clarify something.

EDIT: I should add that there are some quite knowledgeable people who contribute to these sorts of threads. Not the least of which is DrChinese. His website is a great resource.

Also, by the way, I noticed in passing some references to 'free will'. I don't think it has anything to do with any of this. There are subtle considerations, but free will isn't one of them, imho. It's one of those things, like superdeterminism, that can muddy up the real issues.
 
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  • #236
ThomasT said:
@ lugita15,

The exchange between you and I got a little off track. Which was my fault, and I apologize for not taking the time to sort it out properly. Below I'll comment in reference to an exchange between you and zonde, and hopefully any misunderstanding will be clarified.


I think that there's some step or steps in the LR line of reasoning which then lead(s) to the logically necessary conclusion that the correlation between θ and rate of coincidental detection should be linear. But I don't think it's the prediction of perfect correlation at θ = 0°. After all, QM predicts the same thing as LR at θ = 0°, but wrt all θ the QM and LR correlations are different. So it seems that we can't attribute that difference to the prediction of perfect correlation at θ = 0°.



I already agree with this, and have said so many times in this thread. But you're not then done. This is where the assessment of the necessity of a local superdeterministic model of quantum entanglement begins.


I agree that the answer is no.

Ok, now I disagree.

This is the basis of both the QM and LR treatments, but I would argue that, given this perfect correlation (ideally) at θ = 0°, one is not then forced to believe in a linear correlation wrt all values of θ. After all, the QM treatment leads to a nonlinear correlation wrt all θ.

So, given what we do agree on, wouldn't the first step in assessing the applicability of the concept of superdeterminism wrt generating the simplest and clearest possible understanding of why BIs are violated have to do with identifying any and all points in the LR reasoning which lead to the prediction of a linear correlation between θ and rate of coincidental detection?


Ok, I think I see one source of our misunderstanding. I'm not a local realist. That is, I don't think that a viable LR model of quantum entanglement is possible.

But I am a local determinist. I think that both of these assumptions, locality and determinism, are supported by ample empirical evidence. They seem to be the basis of our everyday navigations through our shared reality. And they seem to be the basis for doing physical (essentially mechanistic) science. As far as I can tell, the assumptions of nonlocality and indeterminism arise, more or less ad hoc, from our inability to make viable LR models of quantum entanglement and our inability to predict certain quantum experimental phenomena.

I'm going to stop here, but will pick up, eventually, where I left off, with a brief exposition of the local deterministic approach to understanding quantum entanglement, and then tying it into the thread question. The focus will eventually be on identifying the precise elements in the standard LR formulation (line of reasoning) which are at odds with what's presumably (according to a local deterministic view) occurring in the underlying reality, and how the encoding of certain elements contrary to that view into an LR formalism, and a Bell inequality, necessarily entails the violation of BIs.

Then the question will be: what, exactly, has been proven, and does our understanding of BI violations necessarily warrant the assumption of superdeterminism in order to maintain a local deterministic view of our universe?

Note: It's important to keep in mind that the formal requirement, local realism, is not equivalent to the philosophical orientation, local determinism. The former having to do with what's required to render a model of quantum entanglement explicitly local or explicitly realistic (without any ad hoc associated nonlocal mechanisms or assumptions), or, as with Bell's formulation, both -- and the latter having to do with assumptions about the way our world is, based on extant empirical observations.

also want to say i don't think local realism is a necessary platform for determinism.
 
  • #237
jadrian said:
also want to say i don't think local realism is a necessary platform for determinism.
Then we agree on that. I'd even go a bit further and say that local realism isn't a necessary platform for local determinism. One is a set of formal requirements (restrictions on formalism), the other is a philosophical orientation based on our experience.
 
  • #238
ThomasT said:
Then we agree on that. I'd even go a bit further and say that local realism isn't a necessary platform for local determinism. One is a set of formal requirements (restrictions on formalism), the other is a philosophical orientation based on our experience.

also as nonlocal interactions will be considered predetermined, i think this is the best way for relativity to reconcile with qm
 
  • #239
jadrian said:
also as nonlocal interactions will be considered predetermined, i think this is the best way for relativity to reconcile with qm
This is a bit vague. And I think that QM and SR have already been reconciled in the form of quantum field theory. Which I'm not fluent in.

By the way, I appreciate your posts, but try to stay on topic.

I'm going to go back and read the preceding several pages because it seems that you've had a lot to say. Give me at least 30 minutes. And if there's any point that you'd like to make that you think is important to the thread topic that you haven't already made, then let's hear it.

EDIT: jadrian, my apologies. I recall now that you're the original poster (the OP, which can refer to original poster, or original post).

Well then, perhaps you might synopsize your assessment of the thread thus far ... and we'll take it from there.
 
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  • #240
lugita15 said:
Whatever you think of Bell tests, do you think you can reproduce the result of a Bell test using billiard balls? How would you do so?

u can't rule out the possibility of a model that could
 
  • #241
ThomasT said:
This is a bit vague. And I think that QM and SR have already been reconciled in the form of quantum field theory. Which I'm not fluent in.

By the way, I appreciate your posts, but try to stay on topic.

I'm going to go back and read the preceding several pages because it seems that you've had a lot to say. Give me at least 30 minutes. And if there's any point that you'd like to make that you think is important to the thread topic that you haven't already made, then let's hear it.

EDIT: jadrian, my apologies. I recall now that you're the original poster (the OP, which can refer to original poster, or original post).

Well then, perhaps you might synopsize your assessment of the thread thus far ... and we'll take it from there.

wear a poncho its a bit of a ****storm. i learned a lot along the way but its hard for me to blindly accept assertations from someone who thinks he is alive in the traditional sense and believes he chooses his future as if isolated from very basic laws of physics and the universe itself
 
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  • #242
jadrian said:
wear a poncho its a bit of a storm. i learned a lot along the way but its hard for me to blindly accept assertations from someone who thinks he is alive in the traditional sense and believes he chooses his future as if isolated from very basic laws of physics and the universe itself
Not sure what this means or what it's in response to.
 
  • #243
lugita15 said:
Whatever you think of Bell tests, do you think you can reproduce the result of a Bell test using billiard balls? How would you do so?
jadrian said:
u can't rule out the possibility of a model that could
If you used billiard balls, then it wouldn't be a Bell test. You could model any billiard ball test using classical mechanics.
 
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  • #244
ThomasT said:
Not sure what this means or what it's in response to.

dr chineses assertions
 
  • #245
jadrian said:
dr chineses assertions
Ah. Ok, still not sure about it. But that's ok. A bit off-topic. Of course it's your topic, so I guess you can swerve a bit now and then, so to speak. Not sure about the rules on that.

Anyway, yeah, I agree that it's generally not a good idea to blindly accept assertions from anybody, though, in my experience, DrC's assertions are generally pretty good. But nevertheless check them out.
 
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<h2>1. Why is superdeterminism not the universally accepted explanation of nonlocality?</h2><p>Superdeterminism is not the universally accepted explanation of nonlocality because it goes against the widely accepted principle of free will. Superdeterminism suggests that all events, including human decisions, are predetermined and therefore there is no true randomness or free will in the universe. This goes against our understanding of human agency and the ability to make choices.</p><h2>2. What evidence supports the rejection of superdeterminism as an explanation for nonlocality?</h2><p>One of the main pieces of evidence against superdeterminism is the violation of Bell's inequality, which suggests that there is a limit to how much information can be hidden from an observer. If superdeterminism were true, this limit would not exist and the observed correlations in nonlocal systems would not be possible.</p><h2>3. Are there alternative explanations for nonlocality other than superdeterminism?</h2><p>Yes, there are alternative explanations for nonlocality that do not rely on the concept of superdeterminism. Some theories suggest that there are hidden variables or hidden information that can explain the observed correlations in nonlocal systems without resorting to predetermined events.</p><h2>4. What implications would accepting superdeterminism have on our understanding of the universe?</h2><p>If superdeterminism were to be accepted as the explanation for nonlocality, it would have significant implications on our understanding of the universe. It would mean that all events, including our thoughts and actions, are predetermined and there is no true randomness or free will. This would challenge our understanding of causality and the role of human agency in shaping our reality.</p><h2>5. Is there ongoing research and debate surrounding the concept of superdeterminism and its relation to nonlocality?</h2><p>Yes, there is ongoing research and debate surrounding the concept of superdeterminism and its relation to nonlocality. Scientists continue to explore alternative explanations for nonlocality and gather evidence to support or refute the concept of superdeterminism. This is an active area of study in the field of quantum mechanics and there is no consensus yet on the ultimate explanation for nonlocality.</p>

1. Why is superdeterminism not the universally accepted explanation of nonlocality?

Superdeterminism is not the universally accepted explanation of nonlocality because it goes against the widely accepted principle of free will. Superdeterminism suggests that all events, including human decisions, are predetermined and therefore there is no true randomness or free will in the universe. This goes against our understanding of human agency and the ability to make choices.

2. What evidence supports the rejection of superdeterminism as an explanation for nonlocality?

One of the main pieces of evidence against superdeterminism is the violation of Bell's inequality, which suggests that there is a limit to how much information can be hidden from an observer. If superdeterminism were true, this limit would not exist and the observed correlations in nonlocal systems would not be possible.

3. Are there alternative explanations for nonlocality other than superdeterminism?

Yes, there are alternative explanations for nonlocality that do not rely on the concept of superdeterminism. Some theories suggest that there are hidden variables or hidden information that can explain the observed correlations in nonlocal systems without resorting to predetermined events.

4. What implications would accepting superdeterminism have on our understanding of the universe?

If superdeterminism were to be accepted as the explanation for nonlocality, it would have significant implications on our understanding of the universe. It would mean that all events, including our thoughts and actions, are predetermined and there is no true randomness or free will. This would challenge our understanding of causality and the role of human agency in shaping our reality.

5. Is there ongoing research and debate surrounding the concept of superdeterminism and its relation to nonlocality?

Yes, there is ongoing research and debate surrounding the concept of superdeterminism and its relation to nonlocality. Scientists continue to explore alternative explanations for nonlocality and gather evidence to support or refute the concept of superdeterminism. This is an active area of study in the field of quantum mechanics and there is no consensus yet on the ultimate explanation for nonlocality.

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