Does Neuroscience Challenge the Existence of Free Will?

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The discussion centers on the implications of Benjamin Libet's research, which suggests that decisions occur in the brain before conscious awareness, raising questions about free will and determinism. Participants explore whether this indicates a conflict between determinism and free will, proposing that neurological processes may be deterministic while free will could exist in a non-physical realm. The conversation critiques the reductionist view that equates physical processes with determinism, arguing instead for a more nuanced understanding that includes complexity and chaos theory. The idea that conscious and unconscious processes are distinct is emphasized, with a call for a deeper exploration of how these processes interact in decision-making. The limitations of current neuroscience in fully understanding consciousness and free will are acknowledged, suggesting that a systems approach may be more effective than reductionist models. Overall, the debate highlights the complexity of free will, consciousness, and the deterministic nature of physical processes, advocating for a more integrated perspective that considers both neurological and philosophical dimensions.
  • #331
Pythagorean, I don't think the idealistic viewpoint that Ken G explained is useless. You don't know if mind emerges from matter or matter from mind. In fact the both terms are not defined at all, they depend on our still primitive understanding of the world. So one must always assume all the possibilities, because the "productiveness" depend on all of them. Thats what Ken G wanted to say with his/her questions, what do we learn from this and this standpoint.

As for the information, let's not focus on its configuration in spacetime, but rather on its origin. Is it again a psychological property just like weak emergence, can information be created without depending on sentience?
 
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  • #332
Pythagorean said:
Your blanket response is pretty much, "you can't prove that", and a vague notion of "solipsism could be true".
Correction, that is what you heard. What I was actually telling you is that you are making claims you cannot support. What "use" have you demonstrated from your claims? Science does not require those claims in order to be useful, science is not a belief system nor does it need physicalist philosophy.
You do not seem not to really appreciate the same division of reality that I do, so why don't you tell me about yours instead?
You don't have a "division" of reality at all, that's the point. All you have is a belief system that you cannot even support. Basically, you have made a claim that has no use, and are objecting to my pointing that out on the basis that my pointing it out has no use. Ferris_bg has it right.
 
  • #333
pftest said:
My reply is here https://www.physicsforums.com/showthread.php?p=3206396#post3206396
It's about emergence so it fits better in that topic than in this free will one.

Good point, responded! Seems like a fun thread too, I'll stick around it.

Ken G, Pythagorean... easy guys, you're both smart and thoughtful, and have been and can do better than these last couple of posts.

Believe it or not, it's actually quite useful for amateurs like me to read your arguments, but not your spats.
 
  • #334
Ferris_bg said:
As for the information, let's not focus on its configuration in spacetime, but rather on its origin. Is it again a psychological property just like weak emergence, can information be created without depending on sentience?
That's an important question, and I would say that what is demonstrable is that it does. Maintaining the inverse requires, at least, some evidence.
 
  • #335
An ant can create novel and unique chemical trails encoding information without a HINT of sentience, I'm not seeing the hook here.
 
  • #336
The hook lies in the question of, according to whom is the ant trail encoding information? Does the ant think there is information there? Is an ant an information broker of some kind, or is it just following a program of some kind (the information content of that program being, of course, something that the ant also does not see nor has any use to see)? The deep question here is, to what extent are our minds responsible for how we think, and how we use mental constructs like information and energy. I wouldn't even claim a relation like sentience --> information, or information --> sentience, but rather that the only place where they appear (in our minds), they appear together.
 
  • #337
Ken G said:
The hook lies in the question of, according to whom is the ant trail encoding information? Does the ant think there is information there? Is an ant an information broker of some kind, or is it just following a program of some kind (the information content of that program being, of course, something that the ant also does not see nor has any use to see)? The deep question here is, to what extent are our minds responsible for how we think, and how we use mental constructs like information and energy. I wouldn't even claim a relation like sentience --> information, or information --> sentience, but rather that the only place where they appear (in our minds), they appear together.

Regardless of its awareness or instruction-set, the ant encodes information that not ONLY other ants can follow, which an alien intelligence COULD in theory also benefit from. The ant is producing new information through exploration, sans sentience or anything LIKE sentience. Despite that, it's a universal kind of organized information that other beings on the same thermodynamic arrow can understand given the right tools.

A rock is information, but cannot create new information, cannot explore information, it just IS. Life allows information to spread and change, accumulate and organize; a rock is a stable structure, however it resonates or reacts in a piezoelectric fashion.

Information is universal, but how that information is manipulated, created, changed, and interpreted is the realm of the living. Complexity isn't even the issue as arguably a planet is far more complex than an ant, yet the planet is a dissipative system... it's just a chunk of the universe slowly cooling.
 
  • #338
nismaratwork said:
Regardless of its awareness or instruction-set, the ant encodes information that not ONLY other ants can follow, which an alien intelligence COULD in theory also benefit from.
My point is, it is you who have labeled that as information, it is your brain that is gaining the benefit from the label. The ant doesn't need it, or use it, or even want it. Information means nothing to what an ant is doing, it means something to your attempts to analyze what the ant is doing. You are responsible for information, the ant is responsible for a chemical trail. (And we don't need to get into what a chemical trail is, and the responsibilities there.)

The ant is producing new information through exploration, sans sentience or anything LIKE sentience.
No, the ant is doing no such thing. It is quite demonstrable what the ant is doing, and it isn't that. Where that language originates is in your mind's efforts to categorize, organize, and understand, what the ant is doing. Someone with a very different way of thinking about ants might not have any idea what you are talking about or why you would want to analyze it that way, and the ant wouldn't have any idea what either one of you are talking about.
A rock is information, but cannot create new information, cannot explore information, it just IS. Life allows information to spread and change, accumulate and organize; a rock is a stable structure, however it resonates or reacts in a piezoelectric fashion.
Yes, when we think about life, and our concept of information, this is what we find. It's all about our relationship with our own concepts, and what they do for us. Us.
Information is universal, but how that information is manipulated, created, changed, and interpreted is the realm of the living.
The universality of information is that all minds that work like ours universally find value in the concept. That's a limited form of "universality", but it is the one used in science. The only one we can use, but it's not the one many people imagine when they lose track of their own involvement.

Complexity isn't even the issue as arguably a planet is far more complex than an ant, yet the planet is a dissipative system... it's just a chunk of the universe slowly cooling.
Yes, I agree here-- we don't even know how to "rate complexity" in a way that tells us when you get life. Random bits contain more information than does language, so something about communication requires that we suitably limit the information, rather than conveying it willy nilly. Something like that must also be true for life.
 
  • #339
Ken G said:
My point is, it is you who have labeled that as information, it is your brain that is gaining the benefit from the label. The ant doesn't need it, or use it, or even want it. Information means nothing to what an ant is doing, it means something to your attempts to analyze what the ant is doing. You are responsible for information, the ant is responsible for a chemical trail. (And we don't need to get into what a chemical trail is, and the responsibilities there.)

I'm thinking of information in terms of Information, as in physics; the ant IS information, whether I'm there to watch it or not. Granted that last bit is a function of my not believing in wavefunction collapse, but there it is. Other animals such as an ant-eater are not just attracted by such trails, but use them to track the home of the ants. In short, it is universally available information, and as real as anything.

Ken G said:
No, the ant is doing no such thing. It is quite demonstrable what the ant is doing, and it isn't that. Where that language originates is in your mind's efforts to categorize, organize, and understand, what the ant is doing. Someone with a very different way of thinking about ants might not have any idea what you are talking about or why you would want to analyze it that way, and the ant wouldn't have any idea what either one of you are talking about.

The ant(s) form a trail to and from food sources, establish dead ends, and all of that is useful to them, and some other animals. Indipendant of my observation, the information exists, then dissipates over time adding to the total entropy of the 'system'. Even if nobody knows what an ant is, even if ants are gone, those trails still encode additional information about the habits of the colony, food sources, and inter-ant communication.

You don't need to even be sentient to use that information (see anteater again).

Ken G said:
Yes, when we think about life, and our concept of information, this is what we find. It's all about our relationship with our own concepts, and what they do for us. Us. The universality of information is that all minds that work like ours universally find value in the concept. That's a limited form of "universality", but it is the one used in science. The only one we can use, but it's not the one many people imagine when they lose track of their own involvement.

Again, I mean information as in "Information Paradox", not the semi-solopsistic view. Minds with vastly different natures COULD access the ant's information until it fully dissipates, whether or not they do or exist in that fashion is another matter. Human minds are not required for that to be meaningful information about paths.

Ken G said:
Yes, I agree here-- we don't even know how to "rate complexity" in a way that tells us when you get life. Random bits contain more information than does language, so something about communication requires suitable limiting information, rather than conveying it willy nilly. Something like that must also be true for life.

Here I think we converge on apeiron's points about downward constraints... it's part of squeezing the signal out of the noise. Random bits, like the human Genome without context is chaos, but the difference is that ruly random bits could just be called 'waste heat', and the genome is a totally different animals.
 
  • #340
nismaratwork said:
I'm thinking of information in terms of Information, as in physics; the ant IS information, whether I'm there to watch it or not.
Correction, you can analyze the ant as being information, whether you are there or not, except that you need to be there to analyze anything. This is all inescapably true, it comes simply from keeping careful track of what the words mean. And recognizing it makes both quantum mechanics, and relativity, make a lot more sense, but those are two additional threads.
Other animals such as an ant-eater are not just attracted by such trails, but use them to track the home of the ants. In short, it is universally available information, and as real as anything.
Again, the truth here is that your analysis of the situation can be framed in terms of universally available information. If an anteater is just following a program of some kind, there is no information there for the anteater, any more than an electron uses information to fall toward a proton. Information is a mental construct, that is demonstrably true using any definition of information you like.

You don't need to even be sentient to use that information (see anteater again).
You are the one who are saying that information is being used there, the anteater says no such thing. You are also sentient. Coincidence?
Here I think we converge on apeiron's points about downward constraints... it's part of squeezing the signal out of the noise. Random bits, like the human Genome without context is chaos, but the difference is that ruly random bits could just be called 'waste heat', and the genome is a totally different animals.
Yes, our analysis about information is similar here, what differs is our claims about what information is.
 
  • #341
Ken G said:
Correction, you can analyze the ant as being information, whether you are there or not, except that you need to be there to analyze anything. This is all inescapably true, it comes simply from keeping careful track of what the words mean. And recognizing it makes both quantum mechanics, and relativity, make a lot more sense, but those are two additional threads.
Again, the truth here is that your analysis of the situation can be framed in terms of universally available information. If an anteater is just following a program of some kind, there is no information there for the anteater, any more than an electron uses information to fall toward a proton. Information is a mental construct, that is demonstrably true using any definition of information you like.

You are the one who are saying that information is being used there, the anteater says no such thing. You are also sentient. Coincidence?
Yes, our analysis about information is similar here, what differs is our claims about what information is.

Your view seems solipsist, or an generally extreme Copenhagen Interpretation... I don't believe that we have to be present for something to exist. We need to be present for that information to be meaningful to us, but it exists whether or not we're there. The anteater, unlike the electron, is not simply a smear of probability, it's a macroscopic object which, without the information from the ants would not exist. They existed before we were there to observe them, and will (hopefully) continue when we're gone.

That the next ant in order can glean, even by genetic program, and reinforce the information of the trail is enough frankly, but the exploitation of that information by the anteater is a nail in that coffin to me. Remember, the anteater isn't merely attracted to the trail, it eats along it, back to the nest/bivouac/hill/etc. Unlike an electron it's following a defined path, even if it's instinctual, and if it's not hungry it can still recognize the path-information of the ant.

We can do the same, so could in theory, an alien intelligence. That to me argues for an objective reality about the specific information encoded by the ants, independent of us.
 
  • #342
You both are right, because your definitions of information are not identical. In fact everything boils down to whether information is a property of matter or not. If you want we can move to a new thread discussing that, because we moved away from the main topic.
 
  • #343
Ken G,

there's plenty of experimental evidence that suggests mind arises from brain:

labotomies, pharmaceuticals, recreational drugs, neuropsychology experiments...

But if you're a solipsist, this discussion is not really worth having, since I'm just a figment of your imagination.
 
  • #344
Ferris_bg said:
You both are right, because your definitions of information are not identical. In fact everything boils down to whether information is a property of matter or not. If you want we can move to a new thread discussing that, because we moved away from the main topic.
Yes I agree, that's really a different thread. In a thread like that, I'd bring up observer effects in quantum mechanics, and the role of the observer in relativity, to show that physical information doesn't mean much of anything until you have an intelligent observer who is processing that information. A key point is that the intelligent observer can be hypothetical-- but that just means some other intelligent observer, who is real, is imagining a hypothetical intelligent observer, as part of the real observer's analysis of the situation.
 
  • #345
observers don't have to be living things in QM...
 
  • #346
Pythagorean said:
Ken G,

there's plenty of experimental evidence that suggests mind arises from brain:

labotomies, pharmaceuticals, recreational drugs, neuropsychology experiments...
Not a single one of those is evidence of your claim, they are all examples of what I am talking about-- interactions between what we call mind and what we call brains that we have not the least idea the structure of the connection. I covered that already, around what you can do to telescopes to make planetary nebula look different.
But if you're a solipsist, this discussion is not really worth having, since I'm just a figment of your imagination.
A lot of people don't understand the point of solipsism. In constructive usage, solipsism is nothing but the core principle of all science-- that knowledge is provisional, and that skepticism is our primary tool for obtaining more knowledge. A lot of people don't understand that. If you restrict solipsism to meaning a claim that nothing is real except the mind, then note that at no point have I ever made that claim. Instead, I have noted the undeniable truth that everything we know comes through the filter of our minds, and to ignore that is just living in denial.
 
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  • #347
I understand it, but it's not a productive place to do science from. Do you know what I mean? Our belief that brain provides consciousness has been useful in troubleshooting consciousness. Ignoring the brain all together was the tradition psych approach. And that's fine: I often pretend an ensemble of QM particles is something called a "ball". Simplifying assumptions help us understand things more deeply even though they're technically lies.
 
  • #348
Pythagorean said:
observers don't have to be living things in QM...
Again, yes they do. However, they can use the device of imagining hypothetical observers, as part of their analysis. Note that everything in quantum mechanics that is an observable is something that makes sense to you and I.
 
  • #349
Pythagorean said:
I understand it, but it's not a productive place to do science from. Do you know what I mean?
I do know what you mean, but I also know that you are misconstruing what I mean. Let me give you a concrete example, Einstein and quantum mechanics. Einstein made the classic mistake of thinking that he knew something that he did not in fact know-- he thought that he knew that reality exhibited local realism (in which every object "carries with it" all the information needed to determine how the object will behave in any situation, even if the information is purely statistical). So he developed the EPR paradox to show why quantum mechanics had to be wrong. Unfortunately, experiments showed that quantum mechanics was right, and reality did not exhibit local realism. In any time period earlier than the last 100 years, if anyone had said "but how do you know that reality exhibits local realism", that person would have been branded a solipsist for being skeptical about something that everyone already knew was true, for all practical purposes. They would have said the person was nitpicking, making formally correct but useless in practice observations. But not in the last 100 years, then that person's insight would have been viewed as an entry point to multiple-particle quantum systems.

Our belief that brain provides consciousness has been useful in troubleshooting consciousness.
A thousand times no. Our "belief" in anything is completely irrelevant to scientific discovery, there is simply no step in the scientific method that says "now believe your hypothesis." Belief systems have nothing to do with good science, and history is rather clear on that. They only get in the way of good science occasionally, but when they do, they are stultifying.
Simplifying assumptions help us understand things more deeply even though they're technically lies.
Yes, that is absolutely true, but we never need to believe our simplifying assumptions, we only need to believe that the assumptions could help us reach some goal or other. That's what motivates making assumptions, not the belief that they are true, or the belief that alternative assumptions cannot have their own value.
 
  • #350
Ken G said:
Yes I agree, that's really a different thread. In a thread like that, I'd bring up observer effects in quantum mechanics, and the role of the observer in relativity, to show that physical information doesn't mean much of anything until you have an intelligent observer who is processing that information. A key point is that the intelligent observer can be hypothetical-- but that just means some other intelligent observer, who is real, is imagining a hypothetical intelligent observer, as part of the real observer's analysis of the situation.

That is not what is meant by an observer in QM; a photon interacting with a system is permutation enough. Solipsism is fine, but you still need to keep your physics facts in order; observer as in "intelligent observer" is only ever used in "Interpretations" of QM, not the formalism, or information theory. Hawking Radiation appears to violate unitarity, as it causes a loss of certain information relating to what "went in", regardless of whether people or ants or gods are around to see.

If your argument is based in intelligent observation, that's really just a flavour of Solipsism, and while I can't say you're wrong, there's nothing to discuss.
 
  • #351
Thanks for the reply Ken G. I wish to add that I am not entirely "committed" to viewpoints as much as it may seem, though I suppose I am simply trying to look at it from a different view. First, yes you were fairly right when you said:

[...]what is a conception of consciousness devoid of its relation to a physicalist description of the brain? And that is, what I would say, the $64,000 question right there. What do we learn about consciousness (or free will) by taking a physicalist perspective, and what do we lose by doing that?

I suppose it it may be simply un-intuitive for me to regard consciousness as a substance. I don't have a problem with relationalist views, simply the seemingly simplistic idea of consciousness as some substance with properties we predicate to it. In fact, given the advent of Modern Physics, I would say that the simplistic notion of matter as being some substance which we attribute properties to as being overly simplistic.

I could quite possible say that my problem is that the positing of some substance called consciousness seems to me to be the superflous positing of an entity. Whereas you might point out that it is only superflous insofar as I start with a physicalist ontology, at which point the dualism becomes ad hoc.

Ultimatley, I am not prepared to make a compelling argument for I cannot argue that my position must necessarily be the case, I can only argue that given the acceptance of some set of assumptions it must be the case. We are not accepting the same basic assumptions, and therefore I can't argue as to what necessarily must be the case.

If there is one thing that I realize, it is that in philosophy (life) there are aspects of reasoning which are not dictated by logic or reason alone. As William James stated, there are "tender-minded and hard-minded philosophers" and it is epistemologically the case that we can never establish definitively the ontological primacy of the physical or the mental. I suppose this is what seems to motivate a phenomenological project, based around situated ontologies viewed from the inside where we bracket our ontological assumptions and simply treat the world of phenomena. This may be (excuse me for extrapolating) close to the type of epistemological position you tend to take. Namely, that the Scientific project does not require ontological commitment to a physicalism. Regardless of my state of belief towards that proposition at the present time, I accept it as true.

My contention is essentially the same as Berkeley's argument against materialism (nowhere near his original words): "How can we abstract away all properties of matter which relate themselves to our experience and define that as the material substratum, when we only know matter through its appearance in our experience". Replace "matter" with "consciousness" (or it seems any x with matter) and this is the argument I am presenting
You may rightly point out, though, that as I myself brought to the forefront, the argument applies equally to matter as well as consciousness. It would seem the idea that matter can be more easily defined and abstracted away from is simply a socio-cultural contingency more so than a philosophical necessity. This may be your point.

Also, excuse me for possibly erroneously extrapolating, but it doesn't seem as though you are a solipsist. It doesn't seem you deny the existence of things in the absence of your presence, simply that distinctions must be drawn between the world of phenomena and the concepts we form thereof, and that we can speak about "independantly existing" reality only if we are here to experience it. You are making an epistemological claim, not an ontological one.

With regards to the information discussions, it seems as ferrisbg pointed out that you are not sticking to the technical scientific definition of "information" so much as pointing out that information is a label we apply to some phenomena in the creation of cognitive tools for the understanding of reality. Kind of reminds me of this:

"Before you have studied Zen, mountains are mountains and rivers are rivers; while you are studying it, mountains are no longer mountains and rivers no longer rivers; but once you have had Enlightenment, mountains are once again mountains and rivers are rivers"

First, I have taken this radically out of context as it is evidently not being applied to personal practice and "no-mind", regardless some insights may yet still be gained.
The point, which seems in my interpretation close to what your point sometimes is, is that reality simply is. Reality is, and reality occurs regardless of what labels we apply to the various phenomena in our relatively arbitrary divisions we create. The "information" is there in the sense that the anteater follows "it" and "it" is "real", but the "information" is not necessarily there, for the anteater will do what he does regardless of the appellation "information", which has a specific theoretical background and interpretational structure behind it. This may be able to be argued even from a Quinean Indeterminacy of translation perspective. Given observations of some animals behavior we can not ever say, that the specific "information" within our theoretical framework is uniquely determined by the animals behavior. There exists a number of other ways to define and coneptualize the animal's behavior and we could argue that given some equivalent theory P' the interpretation given to that behavior under that theory "exists" and is "corroborated" by the behavioral predictions. Even if the underlying ontology is radically different. Nothing determines what translation and ontology must be supplied to a given formalism

It is also interesting to note that the above quote may be similar to Einstein's physical/philosophical development, for he openly acknowleged that scientific theories are "free constructions of the scientist's mind" and that science does not describe phenomena as they must be but provides a "window on nature". So far as I can tell, his qualms with QM were based off of what he considered as necessary conditions for any successful explanation of nature, namely a principle of spatial individuation.

However, if one renounces the assumption that what is present in different parts of space has an independent, real existence, then I do not at all see what physics is supposed to describe. For what is thought to by a ‘system’ is, after all, just conventional, and I do not see how one is supposed to divide up the world objectively so that one can make statements about the parts.

also, seemingly of relevance

“The physical world is real.” That is supposed to be the fundamental hypothesis. What does “hypothesis” mean here? For me, a hypothesis is a statement, whose truth must be assumed for the moment, but whose meaning must be raised above all ambiguity. The above statement appears to me, however, to be, in itself, meaningless, as if one said: “The physical world is cock-a-doodle-doo.” It appears to me that the “real” is an intrinsically empty, meaningless category (pigeon hole), whose monstrous importance lies only in the fact that I can do certain things in it and not certain others. This division is, to be sure, not an arbitrary one, but instead ….

I concede that the natural sciences concern the “real,” but I am still not a realist

(btw those were taken from this article for all who are interested http://plato.stanford.edu/entries/einstein-philscience/#ReaSep)
 
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  • #352
As a side note, it seems that when others say QM doesn't require an intelligent observer and you say it does, you are both right to some extent. QM definatley does NOT require a conscious observer. It is not in the formalism, nor is it the most parsimonious interpretation. However, as an epistemological statement, QM does require an intelligent observer to "make measurements", "record information" and "calculate a wave function", the clincher is that this is trivially true to the extent that it is just as true for classical mechanics or any other scientific theory and so bringing "intelligent observers" into discussions of QM is misleading, unless you are arguing for some "consciousness causes collapse" interpretation.
 
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  • #353
nismaratwork said:
That is not what is meant by an observer in QM; a photon interacting with a system is permutation enough.
No, that is exactly what is meant by an observer in QM. An observer in QM is always a kind of "mini me", it is given meaning entirely by how we perceive and interact with our environment. That is why the observables of the quantum realm are the same as the observables of the macro realm, they just function differently in that realm. The way I put this is, if electrons could think, they wouldn't do quantum mechanics. Quantum mechanics is always the way we relate the quantities that make sense to us to a realm that does not make sense to us. There is an amazing abstract mathematical structure behind that relating, but it is a relating all the same.

Solipsism is fine, but you still need to keep your physics facts in order; observer as in "intelligent observer" is only ever used in "Interpretations" of QM, not the formalism, or information theory.
My quantum facts are just fine. There is not one single shred of any formalism of information theory that does not directly refer to how humans think. Indeed, there is simply no alternative to this. It's just that we often push this fact under the rug-- which is not the same thing as it not being a fact.
Hawking Radiation appears to violate unitarity, as it causes a loss of certain information relating to what "went in", regardless of whether people or ants or gods are around to see.
Violating unitarity is trivial-- any measurement of a non-eigenstate does it. That's why many-worlds are invented to restore the unitarity, but that's their sole reason for existing-- they have no effect at all on any of our observations, they are a fiction of our desire to see unitarity when our observations do not. It is an effective device, I don't reject using the pedagogy-- only the interpretation that we somehow can know this is what is really happening despite not being able to observe it.
If your argument is based in intelligent observation, that's really just a flavour of Solipsism, and while I can't say you're wrong, there's nothing to discuss.
On the contrary, it is all about understanding what information actually is, which is a crucial topic in physics. More and more, we cannot escape an accurate portrayal of what information is, and the role of how we think in our physics. That was a key lesson of both quantum mechanics and relativity, actually-- not pointless solipsism, far from it. It is all too easy to label these cautionary tales as "solipsism" to avoid having to deal with the lessons reality is giving us.
 
  • #354
Ken G said:
No, that is exactly what is meant by an observer in QM. An observer in QM is always a kind of "mini me", it is given meaning entirely by how we perceive and interact with our environment. That is why the observables of the quantum realm are the same as the observables of the macro realm, they just function differently in that realm. The way I put this is, if electrons could think, they wouldn't do quantum mechanics. Quantum mechanics is always the way we relate the quantities that make sense to us to a realm that does not make sense to us. There is an amazing abstract mathematical structure behind that relating, but it is a relating all the same.

My quantum facts are just fine. There is not one single shred of any formalism of information theory that does not directly refer to how humans think. Indeed, there is simply no alternative to this. It's just that we often push this fact under the rug-- which is not the same thing as it not being a fact.
Violating unitarity is trivial-- any measurement of a non-eigenstate does it. That's why many-worlds are invented to restore the unitarity, but that's their sole reason for existing-- they have no effect at all on any of our observations, they are a fiction of our desire to see unitarity when our observations do not. It is an effective device, I don't reject using the pedagogy-- only the interpretation that we somehow can know this is what is really happening despite not being able to observe it.
On the contrary, it is all about understanding what information actually is, which is a crucial topic in physics. More and more, we cannot escape an accurate portrayal of what information is, and the role of how we think in our physics. That was a key lesson of both quantum mechanics and relativity, actually-- not pointless solipsism, far from it. It is all too easy to label these cautionary tales as "solipsism" to avoid having to deal with the lessons reality is giving us.

You seem stuck where Dirac was... and no, I don't think that MWI is necessary to resolve the BH Information Paradox, it would seem that Hawking is trying to circumvent the need. Granted, the math is far beyond me, but I'm more impressed by "shut up and calculate" than endless iterations of omphaloskepsis. The idea that the observer must be human, as opposed to a filler for permutation of a system is not palatable to me, and frankly seems unreal in the light of DCQE.

Your relation between the math and your philosophy strikes me as tenuous, but then, maybe you have a very deep understanding of the math.
 
  • #355
JDStupi said:
Thanks for the reply Ken G. I wish to add that I am not entirely "committed" to viewpoints as much as it may seem, though I suppose I am simply trying to look at it from a different view.
I wasn't really aiming that comment at you, it was more of an aside about my reactions when I hear philosophers use the expression "I am committed to..." . I know why they do that, it is to say "by proclaiming my allegiances, I can save myself 90% of the arguments I would need to put forward, because you will already know them based on the history of those allegiances." But the same can be accomplished just by saying "I am currently swayed by such-and-such a position", or "I am now interested in pursuing the ramifications of such-and-such an ism." That's in the spirit of a hypothesis, rather than a stultifying belief system, and certainly not a commitment.
I suppose it it may be simply un-intuitive for me to regard consciousness as a substance. I don't have a problem with relationalist views, simply the seemingly simplistic idea of consciousness as some substance with properties we predicate to it.
But if you look up a definition of consciousness right now, will it not look much more like a set of predicated properties, rather than a process of emergence? The definition list properties, so it is already a kind of substance-- the idea that it emerges from something else is added on top of that, rather belatedly, and without much in the way of solid evidence. When you note that an awake person is more conscious than a sleeping person, it is not because you sense the presence or absence of a process of emergence, it is because you either detect or do not detect the properties that define the substance itself.

Now, it is not necessary to consider consciousness to be a physical substance like a planetary nebula, I did not mean to carry the analogy that far. I reject physicalism on the grounds that it has not made its case, it is just a convenient assumption that many like to make to simplify their reasoning. That makes it a hypothesis, not a belief system, when used responsibly. So we can hypothesize that consciousness cannot be a substance because it doesn't seem to make much sense to give it physical characteristics (rather than experiential ones), or we can hypothesize that consciousness is an experiential substance (like a qualia) that is nonphysical, but that is nevertheless defined by its properties and does not need to be created by a brain, it can just be interfaced with, interacted with, detected, or stored by a brain-- perhaps like a glass in the rain collects water without generating the water. But it must begin with allowing the possibility of interactions between what we count as primarily physical with what we count as primarily nonphysical, or more accurately, the recognition that the concepts of physical and nonphysical are not fundamental aspects of reality, they are polar modes of thought that we subject reality to.

In fact, given the advent of Modern Physics, I would say that the simplistic notion of matter as being some substance which we attribute properties to as being overly simplistic.
Agreed, another reason to be suspicious of physicalist idealizations. When it is hard to even define what "physical" means, we have a hard time claiming that everything is it. Fields, virtual particles, extra dimensions, multiverses-- "physical" just ain't what it was cracked up to be in Newton's day.
I could quite possible say that my problem is that the positing of some substance called consciousness seems to me to be the superflous positing of an entity. Whereas you might point out that it is only superflous insofar as I start with a physicalist ontology, at which point the dualism becomes ad hoc.
Yes, that is just what I might say.

Ultimatley, I am not prepared to make a compelling argument for I cannot argue that my position must necessarily be the case, I can only argue that given the acceptance of some set of assumptions it must be the case.
If that kind of honesty was characteristic of physicalist perspectives, I'd have no problem with them.

We are not accepting the same basic assumptions, and therefore I can't argue as to what necessarily must be the case.
The issue is not which assumptions we should accept, it is the whole question of whether we need to "accept" assumptions at all. It gets back to the basic issue of, is the purpose of philosophy to generate a personal belief system, or is it just to see where certain assumptions lead. I'd have no problem at all with the statement "the assumption that consciousness emerges from a strictly physical system leads me to conclude that X would then be true about consciousness", especially if X was something different from the very assumptions that are being adopted (which so far I really haven't seen). That's the challenge, to create an argument like "assumption A leads to conclusion X", not "assumption X leads to conclusion X", which is all I really see from physicalist arguments. Note I am not talking about using physical models of the emergence of consciousness, that's just making a model, I'm talking about physicalism-- the claim that nothing else exists or could ever matter, the claim that there could not be any value in any nonphysical perspective. It's institutionalized lack of imagination.

If there is one thing that I realize, it is that in philosophy (life) there are aspects of reasoning which are not dictated by logic or reason alone. As William James stated, there are "tender-minded and hard-minded philosophers" and it is epistemologically the case that we can never establish definitively the ontological primacy of the physical or the mental. I suppose this is what seems to motivate a phenomenological project, based around situated ontologies viewed from the inside where we bracket our ontological assumptions and simply treat the world of phenomena. This may be (excuse me for extrapolating) close to the type of epistemological position you tend to take. Namely, that the Scientific project does not require ontological commitment to a physicalism.
Yes, that's just what I'm saying. It seems to be an almost invisible prejudice that physicalism can be equated to science, but there's just no such equation when the demonstrable goals of science are at the forefront.
My contention is essentially the same as Berkeley's argument against materialism (nowhere near his original words): "How can we abstract away all properties of matter which relate themselves to our experience and define that as the material substratum, when we only know matter through its appearance in our experience". Replace "matter" with "consciousness" (or it seems any x with matter) and this is the argument I am presenting
But that sounds more like what I'm arguing to me-- that it makes little sense to conclude that consciousness is fundamentally emergent from the physical, when our most direct connection with consciousness is the nonphysical experience of it. Instead, I prefer the stance that although we know perfectly well that consciousness is not emergent from the physical, all the same we anticipate progress in understanding consciousness by adopting a physical approach. That more or less sums up the Scientific project.
You may rightly point out, though, that as I myself brought to the forefront, the argument applies equally to matter as well as consciousness. It would seem the idea that matter can be more easily defined and abstracted away from is simply a socio-cultural contingency more so than a philosophical necessity. This may be your point.
Then I needn't say it!
Also, excuse me for possibly erroneously extrapolating, but it doesn't seem as though you are a solipsist. It doesn't seem you deny the existence of things in the absence of your presence, simply that distinctions must be drawn between the world of phenomena and the concepts we form thereof, and that we can speak about "independantly existing" reality only if we are here to experience it. You are making an epistemological claim, not an ontological one.
Yes that's true, I'm not being solipsistic in the sense that I'm claiming reality lies on "our side" of the observer/observed duality, I'm solipsistic only in the sense that I'm claiming we have no idea what reality is, but we have a means of gaining knowledge about reality via the observer/observed duality. Just as you say, it is an epistemological stance, not an ontological one.
The point, which seems in my interpretation close to what your point sometimes is, is that reality simply is. Reality is, and reality occurs regardless of what labels we apply to the various phenomena in our relatively arbitrary divisions we create. The "information" is there in the sense that the anteater follows "it" and "it" is "real", but the "information" is not necessarily there, for the anteater will do what he does regardless of the appellation "information", which has a specific theoretical background and interpretational structure behind it.
I see more the weight of the latter part of this reasoning. Let me give an example-- when I say that physics began with physicists, it is normal for people to ask "are you saying that the laws of physics didn't apply prior to human appearance on Earth?" And of course I am not saying that-- I am saying that physics, once it appeared, applied retroactively, because that is a constraint on physics-- it has to apply retroactively, it has to apply over all times.

This may be able to be argued even from a Quinean Indeterminacy of translation perspective. Given observations of some animals behavior we can not ever say, that the specific "information" within our theoretical framework is uniquely determined by the animals behavior. There exists a number of other ways to define and coneptualize the animal's behavior and we could argue that given some equivalent theory P' the interpretation given to that behavior under that theory "exists" and is "corroborated" by the behavioral predictions. Even if the underlying ontology is radically different.
Yes, I think that's an astute point.

It is also interesting to note that the above quote may be similar to Einstein's physical/philosophical development, for he openly acknowleged that scientific theories are "free constructions of the scientist's mind" and that science does not describe phenomena as they must be but provides a "window on nature". So far as I can tell, his qualms with QM were based off of what he considered as necessary conditions for any successful explanation of nature, namely a principle of spatial individuation.
Yes, I agree with Einstein on the "window on nature" perspective, that language seems very appropriate. And I side with Bohr on the issue of what are necessary conditions for explanations of nature-- the "stop telling God what to do" perspective. We are here to learn the lessons of nature, as they intersect with our ability to perceive and reason, not to tell nature how she must behave, or even that she has to be "physical."
 
  • #356
nismaratwork said:
The idea that the observer must be human, as opposed to a filler for permutation of a system is not palatable to me, and frankly seems unreal in the light of DCQE.
And who came up with DCQE? Oh yeah, humans.
 
  • #357
Ken G said:
And who came up with DCQE? Oh yeah, humans.

You're ignoring the implications of the experiment in favor of the experimentor? Come on Ken...
 
  • #358
nismaratwork said:
You're ignoring the implications of the experiment in favor of the experimentor?
I am doing no such thing-- I am simply stating that the experiment and the experimenter are not separable in the way you imagine. The experiment can still be very important-- within the context of unity with the experimenter, not in any other context, because that is the only context that is demonstrably true. Should science not exist in the realm of what is demonstrable?
 
  • #359
Ken G said:
I am doing no such thing-- I am simply stating that the experiment and the experimenter are not separable in the way you imagine. The experiment can still be very important-- within the context of unity with the experimenter, not in any other context, because that is the only context that is demonstrably true. Should science not exist in the realm of what is demonstrable?

Yes, but you're not respecting the language of QM. Observer doesn't mean the same thing as the laymen's observer. It has a meaning specific in QM.

You're talking about a different subject (as humans observe, their skewed perspective is somewhat an invention of reality) which frankly, is philosophy 101. When we teach undergrad physics or write journal articles, this basic philosophical concept is well considered.

We move past that. Our world view is called http://en.wikipedia.org/wiki/Empiricism#Scientific_usage", but I would have thought you already knew that. I don't understand why you keep teaching us 100 level philosophy.
 
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  • #360
Pythagorean said:
Yes, but you're not respecting the language of QM. Observer doesn't mean the same thing as the laymen's observer. It has a meaning specific in QM.
Yes, and it is precisely that meaning I am using. The mathematics of quantum mechanics has observables corresponding to operators in a Hilbert space, and the bilinear forms they generate but I'm talking about what that mathematics means. Operators and bilinear forms exist independently of quantum mechanics, they are formal abstractions only. What makes them relevant to physics is how they relate to the interaction of an observer with the observed. Yes, even in quantum mechanics.
You're talking about a different subject (as humans observe, their skewed perspective is somewhat an invention of reality) which frankly, is philosophy 101. When we teach undergrad physics or write journal articles, this basic philosophical concept is well considered.
Yes, that is why it is so surprising you are using the language you are using to talk about quantum mechanics. Your language is not consistent with those basic philosophical lessons. That is also why I am not quoting sources-- what I am saying is inescapable and elementary, and frankly, people really have no business not recognizing the importance of an observer in an observation, even if the observer is a hypothetical extrapolation of a real observer.
We move past that. Our world view is called http://en.wikipedia.org/wiki/Empiricism#Scientific_usage", but I would have thought you already knew that.
Empiricism, above all, does not escape the role of the observer. The role of the observer, and the way the observer perceives and processes information (i.e., their mind, see the catch?), is paramount to empiricism. But you should already know that.
 
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