UCE,
First of all, your entire argument seems to be based on a rejection of the notion that our perceptions are perceptions of an external reality, in which case this distinction becomes meaningless.
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Not really. One set of qualia refer to a shared objective noumenon, the other refer to our internal state.
OK, but it is still a bit presumptuous to claim that they are truly distinct. To do so implies the assumption that your internal states are not, themselves, part of this shared objective reality. Note that saying that they are part of the shared objective reality does not in any way imply anything absurd like that one person should be able to experience another person's emotions.
Why would that be desperation? I think the evidence with regards to how chemicals affect emotional states, and how emotional states affect brain chemistry, is pretty compelling.
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You cannot seriously be claiming you don't know the difference between PWQs and internal emotional states......
No, what I am saying is that I don't think the distinction is as clear-cut as you are presenting it. Both types of "qualia" have clear physical conotations, whether you choose to believe that they are "physical correlates", or take the more parsimonious approach of assuming that they are physical processes.
For one thing, the scenario you have just presented is not even coherent. In order for me to say that science describes other peoples experiences as well as mine, I must assume that there are, in fact, other people. That is the rejection of Solipsism. Science also requires the assumption that we are all experiencing the same objective reality, as I mentioned above.
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And I have granted that assumption as part of my rejection of simple solipsism. All I am doing is pointing out that what we call 'the material world' is strictly speaking an abstract mathematical model of PWQs. Those PWQs are subjetive interpretations of a shared objective noumenon. What I reject is the assumption that the shared objective noumenon neccesarily exists independently of the general realm of Mind. Berkeleys position is that the noumenon exists in a 'Metamind'.
But look at what you are saying here. You are "rejecting the assumption that the shared reality exists independently of the general mind". What mind? Who has made that assumption? How can I assume that objective reality exists independently of something that I don't even have any idea what it is? Obviously I do not assume that objective reality is part of some general mind, because I have no idea what that even means!
It is exactly the same position as yours except that rather than positing a self-existing prime reality made of matter from which qualia 'arise' I am suggesting that this shared objective noumenon exists in a higher mental realm.
Once again, you are mistaking my position for ontological materialism. i don't believe in any mysterious ontological material realm. I make no assumptions about the nature of objective reality. I leave it to science to tell me what those characteristics are.
My belief that
human consciousness arises from physical brain activity is not a metaphysical assumption. It is a conclusion based on substantial scientific evidence. I make no claim either way about this "MetaMind" that you speak of, because I have no idea what it is. I will not deny the possibility that physical reality is a part of some more fundamental "realm". I simply do not assume that it is, nor do I assume anything about what the nature of that realm must be.
The question is, why do you?
It's (normal) behaviour remains the subject of scientific study exactly as does under materialism.
Which raises another question. You have made it clear that this "Metamind", or "mental realm" of which you claim physical reality is a part, is not simply my mind, or yours, or even a conglomeration of human minds. In fact, so far you haven't explained what it is at all, or how it relates to human minds. So why does any of this have any relevance to the question of human consciousness? In fact, it seems perfectly conceivable to me that physical reality could be a component of some "MetaMind", with human minds still being purely physical processes taking place in our physical brains.
And the fact remains that under Idealism, you cannot explain how consciousness produces the physical reality that we experience.
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How do you know I can't?
Well let me put it this way. I know that you cannot do it under Berkely's Idealism, because he has defined it in such a way that such an explanation is not possible, even in principle.
I can, but I'm only willing to do it in another thread where materialism is temporarily banished and we think about the question from the point of view of some form of mentalism.
I have already told you that I am perfectly happy to look at your claims from within the framework of whatever system it is you are proposing. All you have to do is state your axioms and definitions, and present your argument.
That question is meaningless, unless you can define what it means to say that reality exists in the realm of "MIND". I know what "my mind" and "your mind" mean. I have no idea what "MIND" means.
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It means I am taking the position Erwin Shroedinger did. It means that fundamentally all consciousness is linked - there is only one consciousness and the seperation between minds, as most of us experience it most of the time, is illusory. Think of your mind and my mind as leaves on a branching tree structure.
Analogies are great for getting an idea across, but I still need a formal definition. How are all consciousnesses linked? What characteristics does this MetaMind possess that individual consciousnesses do not? How does this MetaMind produce the physical world?
And of course, what possible logical reason could you have for believing this MetaMind exists?
In any event, I do not assume that reality exists independently of this "MIND", or anything else. I simply don't assume that it is dependent on any such thing. I assume nothing about it that cannot be inferred from reliable scientific evidence.
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Then don't assume anything at all. I merely pointing out some possinilities because you claimed my position was incoherent. I am demonstrating it is not incoherent, not claiming scientific proof.
So far, your position does seem to be incoherent. But that is beside the point. My point is that without these extra ontological assumptions you have been talking about, there is absolutely no reason to believe that human consciousness cannot simply be a physical process in the brain. All of your arguments against this hypothesis have been based on
your ontological assumptions about the relationship between consciousness and the physical World.
I agree completely. What you have just described is scientific materialism. What I do not understand is (a) Why you insist that materialists are assuming anything more about the nature of reality than what you have just described,
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They also assume that the noumenon pre-exists PWQs.
We don't assume that. It is a very obvious conclusion drawn from our observations. All of the scientific evidence indicates that the Physical World was around before people, and all of the scientific evidence indicates that human minds do not exist without human brains.
You can create ad-hoc hypotheses for how human minds could have been around before human brains, but there is no reason to believe that any of them are true.
They do this because they are still thinking about time froim the point of view of materialism.
We think about time from the point of view of the way science describes it, which is the only meaningful way we can think about it. To think about it any other way would be blind speculation.
To go further we have to think about how time relates to materialism and consciousness.
Thinking about it isn't enough. If it is going to be meaningful, it has to be scientifically verifiable.
(b) Why you think that any of this implies that it is not possible for the mind itself to be understood scientifically,
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I didn't even neccesarily claim that. My claim is that science cannot explain how self-existing matter, independent of Mind can produce qualia, since the matter is in fact an abstract model of the qualia.
Science does not assume that matter is self-existing. It just doesn't assume that it is not. And as I said before, the matter is an abstract model for the shared reality, not for the qualia. The qualia are simply our experience of the reality which, as I have already explained, science must assume is an interaction between the shared reality and our mind. I see no reason why this would rule out the possibility of science being able to describe the qualia themselves. On the contrary, it seems clear to me that if the axioms of science are valid, then it must be possible to do so.
(c) Why you think that any of this implies that the mind itself cannot be a physical process,
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In a way, it is. But that is only half of the story.
It's the whole story, until you start adding additional assumptions like MetaMinds. Operating strictly from within the philosophical framework of science, there is no reason to think that there is anything more to it than that.
and (d) Why you choose to make the additional assumption that physical reality is created by some "mind" of some sort.
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That is a conclusion rather than an assumption.
It certainly isn't a conclusion that can be drawn from the assumptions of science, or from any scientific evidence. On what basis do you draw this conclusion. What additional assumptions do you have to make (in addition to the axioms of science) in order to draw this conclusion? And why do you make those assumptions?
The why do you claim that the mental world cannot be a subset of the physical world?
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For all the reasons highlighted over and over again by the manifestations of Chalmers Hard Problem. Right now I am trying to present the scenario which has given rise to the problem, rather than the Problem itself - which has already been discussed at great length.
But as I already pointed out, operating strictly within the framework of science, there is no Hard Problem. The Hard Problem only arises when you make additional ontological assumptions about the relationship between the physical World and human consciousness, whether they take the form of ontological materialism, dualism, or idealism. All three yield equally "Hard Problems".
The hypothesis that consciousness is a physical process in the brain, and that our experiences are interactions between our brains (which are part of the physical world) and the rest of the physical world, is perfectly consistent with the scenario you have just described.
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No it isn't. That would be the same as claiming that the winds themselves, the winds we experience are part of the model of the behaviour of the winds.
What is the inconsistency? Your wind analogy means nothing to me. Explain in logical terms exactly what the contradiction this produces is.
I don't know what kind of materialism you are referring to, but this certainly isn't the case for scientific materialism.
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Not until scientific materialism makes the claim that qualia are solely dependent on matter. As soon as it does that it is attempting to place the thing being modelled (PWQs) into the model.
As I have pointed out several times already, the experiences are not what science tries to model. Science tries to model objective reality. The experiences are our source of information about that reality. There is absolutely nothing wrong with suggesting that the mechanism by which our minds acquire information about objective reality cannot also be explained by our model.
Idealism, however, provides no method for determining how the physical World arises from the mind. It does not even attempt to provide a method. On the contrary, it defines itself in such a way that no reliable method for doing this could, even in principle, exist.
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This is true. If materialism is false then science may have ot accept certian very specific limitations. I believe those limitations are unavoidable and inherent in the system though - so whether or not it limits science in this one specific area is irrelevant.
First of all, what I, and most modern materialists, call materialism is nothing more than the philosophical framework of science, meaning that if it is false, then the scientific method is invalid. Second, science does have limitations. I just don't see any reason why I should believe that the inability to scientifically study the mind should b one of them.
And in doing so, it replaces a set of questions which are, at least in principle, answerable, into a set of questions which are not, even in principle, answerable. It turns a difficult problem into an impossible one.
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From the point of view of scientism. There is an assumption that subjective knowledge cannot be obtained directly - and if all consciousness is indeed linked then it is indeed possible that subjective knowledge can be obtained directly - in other words your objection is itself dependent on materialism being true.
No, it isn't. Even if Materialism is false, even if the scientific method is invalid, you still have the verification problem. Idealism does not provide any reliable way to verify the validity of knowledge. You can argue that under Idealism it is possible to have direct subjective access to knowledge, but you have no way to determine its validity. You have no way to rule out subjective bias. In short, you have no way to distinguish between reality and fantasy. That way lies madness.
I would love to hear a description of the method by which you would attempt to find the answer.
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If you want to discuss this I want to do it in a different thread where materialistic objections are void.
Fine with me.
am perfectly happy to consider your line of reasoning from within whatever logical framework you choose to present it, but first you must provide that logical framework. Attempting to point out flaws with materialism accomplishes nothing in this regard. Start with the axioms and definitions of your framework, and go from there.
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Well we have already started by accepting the existence of PWQs, and an shared objective noumenon. The framework also requires a 'trunk' metamind of which all other minds are branches or leaves i.e. they are all ultimately part of the same Mind.
That's where I have problems. I still don't have any idea what that means. Remember, we are talking about a formal logical framework here. I need formal definitions and axioms, not vague analogies.
It is a scientific theory, and one for which there is considerable supporting evidence. Materialism only assumes that consciousness is physical. It makes no a-priori assumptions beyond that.
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That one assumption is the one I am challenging.
I don't see how you can challenge it without rejecting science. Science defines the word "physical" in terms of interactions. If A interacts with B, and A is physical, then so is B. There is no question that consciousness interacts with the physical world. This is true from mundane things like the fact that we can experience the physical worlds, and the fact that mental states affect our actions, to more subtle things like the impact of chemicals on mental states, and the affect of mental states on brain chemistry.
The interaction is definitely there. This makes consciousness every bit as deserving of the label "physical" as anything else that interacts with other physical stuff.
The only way consciousness could be non-physical would be if the physical World is not causally closed. And that is a direct rejection of a basic axiom of science.
you have not explained why it is absurd, you have merely asserted that it is. My point is that it is only absurd if you make assumptions that materialism does not make.
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Which are?
All that MetaMind stuff.
I have not claimed that you are not correct. It is entirely possible that the axioms of science are wrong.
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The axioms of MATERIALISM, Stimp.....
The axioms of scientific materialism
are the axioms of science. As I said before, I define scientific materialism to be nothing more than the philosophical basis of the scientific method. If you want to argue about the validity of ontological materialism, you will have to find somebody who believes in it first. Good luck.
The axiom of science you have rejected is the axiom which states that physical reality is causally closed.
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Nope Stimp - that is an axiom of materialism, not science.
No, that is clearly an axiom of science. If the physical World is not causally closed, then no logical conclusions can ever be drawn from scientific evidence, because there is always the possibility that some "non-physical" influence could have skewed the results.
After all, if the physical World is not causally closed, then we cannot reject the possibility that Satan just put those fossils there to trick us into believing that the Earth is older than it really is...
If this axiom is true, then consciousness must be physical.
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You are now trying to claim that the science claims conscious as physical as part of its axioms.
No, science claims that anything that has an effect on something physical is also physical. The fact that consciousness has an effect on the physical world is a trivial observation. From this observation I conclude that if the axioms of science are valid, then consciousness must be physical.
I still don't see how this has anything to do with what materialists are doing. We are attempting to model physical reality. Physical reality is what we experience.
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Then you are attempting to model what you experience!
That's right, I am trying to model
what I experience, not the experiences themselves. I am trying to model objective reality.
Try to seperate your experiences from the model of the behaviour of your experiences.
I am not modeling the behavior of my experiences, I am modeling objective reality, based on the behavior of my experiences. I have absolutely no problem with the idea that the mechanism by which I experience objective reality can also be modeled by my model of objective reality.
No, I claimed that science attempts to model the physical World that we experience. In doing so, it provides a model for our experiences.
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It is DIRECTLY a model of our experiences. It is first and foremost a model of our experiences.
No, it isn't. If that were the case, then we wouldn't be going to all the trouble of ruling out subjective bias. After all, such biases are a part of our experiences. They are not, however, included as part of the model.
Clearly what we are attempting to model is the objective reality itself. Our experiences are simply our source of information about it.
I made that very clear when I stipulated that science provides a model for our experiences, but that in doing so it makes the implicit assumption that what we are experiencing is an external objective reality.
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Again, I ask you to examine the word 'external'. External to an individual human mind - not neccesarily external to Mind itself.
Once again, I have no idea what this MetaMind is. Nor is this MetaMind in any way a part of the philosophical framework of science, nor is it in any way implied by scientific evidence.
Science does not require the noumenon to exist independently of a higher mental realm. It makes no claim about the mode of existence of the noumenon. Only ontological materialism makes that claim.
And Idealism, and Dualism. All three are making unnecessary and unjustified assumptions about the nature of reality. That is why I reject them all.
I will just stick with science, thank you very much.
We might also consider Bells Theorem and quantum entanglement. These things suggest the whole of the material world is somehow connected directly at a deeper level of reality
That depends on what you mean by "suggest". They may intuitively suggest those things to you, but they do not in any way logically suggest them at all.
that the Universe is non-local. If the noumenon is a self-existing reality then this is a big mystery.
It's a big mystery either way. Fact: we don't understand it. Making up metaphysical fantasies about it isn't going to change that fact.
If it exists in a metamind then non-locality and 'faster than light' connections suddenly make a bit more sense.
Maybe intuitively, but not logically. you still don't understand the mechanism. You still can't make any more testable predictions then you could before. All you have done is added some metaphysical icing to the cake, to make it taste better. Unfortunately, it is low-fat sugar-free icing, and adds no nutritional value.
See, I can play the analogy game too. 
Dr. Stupid