A priori synthetic statements

Interesting Ian said:
I was particularly thinking about Stimpson, yes. I don't think labeling 2 entirely differing types of existent as both being physical is particularly helpful, but nevertheless we could do that!

But if we did we could no longer say, for example, that simply because materialism is correct (which it is by definition according to Stimpson and others on here), that we necessarily therefore cannot survive the destruction of our brains. But if the brain can cease to function, yet it is conceptually possible we could survive it, then how on earth is this materialism?? :eek:

Nothing impedes the logical posibility that some 'synthesis' (not necessarily the whole consciousness) of the human personality survives death. Even in this case we can still talk of physicalism/materialism, notwithstanding that we should rather label it '[permanent] interactionist dualism'. The stance that materialism implies the total annihilation of the conscious experience after death is too strong, being a mere belief of some materialists.
 
Stimpson J. Cat said:
Unless you are defining "subjective experiences" as an epiphenomenalist does, this is quite clearly false. My subjective experiences, at the very least, affect my behavior. That makes them empirically verifiable.
--------------------------------------------------------------------------------

Geoff
No, that just makes your behaviour empirically verifiable.
--------------------------------------------------------------------------------


Incorrect. If the effects they have on my behavior were impossible to detect, then it would be meaningless to say that they actually affect it. Consider the brain. If my subjective experiences affect my brain activity, then in principle, we should be able to detect those effects. I is nonsensical to say that something physically affects something else, but that those effects cannot be detected.

A complete non-sequitur. Your response has absolutely nothing to do with his observation:

"No, that just makes your behaviour empirically verifiable".
 
metacristi said:
Nothing impedes the logical posibility that some 'synthesis' (not necessarily the whole consciousness) of the human personality survives death. Even in this case we can still talk of physicalism/materialism, notwithstanding that we should rather label it '[permanent] interactionist dualism'. The stance that materialism implies the total annihilation of the conscious experience after death is too strong, being a mere belief of some materialists.

If you think it's too strong then you also fail to understand materialism. The patterns and processes within our brain would need to be reenacted.
 
Interesting Ian said:
If you think it's too strong then you also fail to understand materialism. The patterns and processes within our brain would need to be reenacted.

As I've explained elsewhere (on another site, you know it) some forms of interactionist dualism are viable alternatives. For example those which see consciousness as a compound phenomenon due to complex interactions between different parts of the neural network of the brain (the processor) interacting also very weak with 'something' extra still physical (the 'coprocessor', at limit we could see this part even as sort of 'soul', meaning that is is possible that it could even survive death, retaining part of the former consciousness-though strictly speaking it is different from the initial consciousness).

The processor-coprocessor compound form a single 'entity', there is no need for a 'Cartesian Theatre', consciousness as we know it being an emergent phenomenon from it. The interactions involved might be very weak (or involve quantum events) out of the range of our current measurement devices, possible forever but it is still a form of materialism.
 
metacristi said:
As I've explained elsewhere (on another site, you know it) some forms of interactionist dualism are viable alternatives. For example those which see consciousness as a compound phenomenon due to complex interactions between different parts of the neural network of the brain (the processor) interacting also very weak with 'something' extra still physical (the 'coprocessor', at limit we could see this part even as sort of 'soul', meaning that is is possible that it could even survive death, retaining part of the former consciousness-though strictly speaking it is different from the initial consciousness).

The processor-coprocessor compound form a single 'entity', there is no need for a 'Cartesian Theatre', consciousness as we know it being an emergent phenomenon from it. The interactions involved might be very weak (or involve quantum events) out of the range of our current measurement devices, possible forever but it is still a form of materialism. [/B]

I have no idea what you mean by "emergent" phenomenon. Either we can derive consciousness from physical processes in the brain, or we cannot. If the former it is not emergent, if the latter it is not materialism.

Non-reductive materialist positions entail epiphenomenalism.
Reductive materialist positions entail the thesis that no-one is, or has ever been conscious, including oneself.
 
Stimpson J. Cat said:
[large snip of unresolvable issues]

Why? Just provide your own definitions and/or epistemological position, and we can discuss the relative strengths and weaknesses of the two.

You would claim my definitions were meaningless to you because they start from direct subjective experience which has no real place in your model. You can only make sense of "thought" in terms of physical processes. Any definition I provide of "thought", "subjectivity", "mind", "existence" and such like will be instantly rejected by you, rather obviously. And the epistemological justification is, also obviously, the fact that we have direct access to our own subjective experiences - another (IMO) blatantly obvious and endeniable fact that is neverthesless denied by people such as yourself. My position, and those of many like me, rather depends on people accepting that the non-existence of minds is prima facie absurd and the fact that we have direct access to our own subjective experience is an assumption that cannot seriously be questioned. If you reject those two claims, and you do, then we cannot proceed.


I did not ask if you could justify it to me. I asked if your belief is justified. It is a question of intellectual honesty. Do you actually consider your belief to be justified?

Of course I do. It's justified by a line of reasoning which starts by taking consciousness and subjectivity seriously instead of starting from an assumption of materialism and proceeding to claim that minds don't "really" exist. Minds is where I start from. This is justified rather easily by stating that it is quite impossible to justify starting anywhere else! Your position is to take my starting point and claim you can't make sense of it - not because you are any less trapped in your own subjective experiences than I am - but via a long complicated argument involving all sorts of issues from epistemology to the philosophy of science.

That's pretty much the situation. You claim that a problem exists, but do not appear to be able to explain what that problem is in a way that does not implicitly assume premises which have not been justified as being true.

Not "justified" by your system of justification, Stimpson.

Personally, I don't see any need to justify the claim that my mind exists. I don't need science to tell me this. And I don't care if it happens to set up a contradiction with materialism, because I am not ideologically committed to that or to any other ontology. I just know that my mind very definately exists, and by "mind" I mean the subjective experiences which comprise consciousness.

For me, your whole way of defining things and making judgements puts the cart before the horse. In effect, the only strategy open to you is to claim that the big metaphysical questions aren't really questions at all. That is fine, but you are not going to stop other people, who are quite happy to start from an assumption that minds really do exist, from following a very different line of reasoning and actually trying to find an answer to those questions. You have effectively chosen not to engage with metaphysics - that is your choice - but I maintain that you can't actually avoid allowing metaphysical assumptions influence what you believe are "objective judgements". You are actually far more committed to your own metaphysical position than I am commited to any metaphysical position.

But it is quite different to claim that metaphysics itself cannot be done. It can, you just have to start by rejecting your conclusion that minds don't exist as an absurd position to take. People willing to accept your claim for the non-existence of minds (as a non-physical thing) will likely accept the rest of your position. I suspect those people are currently in a minority, and destined to remain that way. Not because the world is full of woo-woos but because it is genuinely an absurd position, and no scientific advance will change this. All the other people will either continue to learn about metaphysics or they will end up like Richard Rorty, who not only rejects metaphysics but also rejects epistemology.

:)

Geoff.
 
JustGeoff said:
There is an assumption in here that you can define how scientific statements are meaningful in an unproblematic way. No - I don't think his claims can be considered true in the same way that scientific claims are. But I don't think scientific claims are anything like as absolute as you do. Kant used the term "science" but he didn't mean what you mean by science either.

I think we must have lost track of each other's positions somewhere along the way, because I now have no idea what you would mean if you said that Kant's ideas were "true", and you've endowed me as holding scientific claims to be absolute (as opposed to probabilistic) which is inaccurate.

I didn't seperate space and time. They are both required before we can have experiences. But "experiences" does not mean "space and time".

If A and B cannot be found apart, because they are always necessarily together, you can't just divide them up with a stoke of a pen. We have never experienced an experience without space and time, or at least I haven't. I can't imagine how you could justify any claim otherwise either by a priori or a posteriori means.

Two misunderstandings already here. For a start if there is "anything else" then it isn't "in there". "In there" implies a physical location and non-physical things don't have a physical location.

Second, given your own definition of "evidence", there can never be any evidence of a non-physical thing. So your "lack of evidence" is an irrelevant claim. You already "know" a priori that there "can't be any evidence", so the fact that none can be found demonstrates absolutely nothing.

In response to the first remark, sure, you know what I mean.

In response to the second, I have not defined away the possibility of a causally efficacious, non-physical thing. Such a thing is conceivable, it is just that there is absolutely no evidence for such a thing. Find some evidence and you will convince me and win a million dollars.

Claiming otherwise is just plain dumb. I wasn't claiming otherwise. I don't think you understand my position. I am not trying to claim that there is such a thing as a non-physical physical thing. I suspect you are reading far too much into what I am saying. I have mentioned neither religion nor supernaturalism, but it's quite obvious you think I am defending both of them.

On the contrary, I am pointing out that given the total lack of evidence for efficacious non-physical thingies, belief in their existence is a supernatural belief just as belief in Thor is a supernatural belief. If Thor showed up in my lounge room, then belief in Thor would no longer be supernatural. Until he does, it is.

Which question would that be?

The question of whether the mind is nothing more or less than a collection of observable atoms doing their observable things.

Well, that's your business. I'm not here on a crusade to educate you on where science stops and metaphysics starts.

When you present us with a genuine problem, as opposed to ones that rest on shaky foundations, that lies outside the range of science then we can start talking.

I repeat: my position doesn't require that we be able to find physical evidence for non-physical things. I'd have to be pretty dumb to be claiming that. You are violently assaulting a straw man, not my argument. :)

I think you need to clarify what your position is a little, because to my way of thinking you must do exactly this if your claims are (analytic) a posteriori, right? A posteriori requires evidence, surely?

Well, perhaps I am an idiot for wanting to go to University and study it then. :)

You said it, not me.
 
Ian said:
A complete non-sequitur. Your response has absolutely nothing to do with his observation:

"No, that just makes your behaviour empirically verifiable".
Let's take a specific example. Consider a person with a phantom limb. He has feelings that his amputated limb is still there, including pain. You have a hypothesis about this. You have him close his eyes and you touch a Q-tip on his cheek. He says that he feels the contact in both his cheek and his missing finger. Hypothesis confirmed.

Thinking about this, we say that his subjective experience (feeling the finger) results in behavior (stating that he felt the finger), and this verifies the subjective experience of feeling the phantom limb. Now someone could say, no, it only verifies the behavior of stating that he felt the finger. But what does this mean?

Of course, we could look at subjective experiences as internal behavior. Then Geoff's statement "No, that just makes your behaviour empirically verifiable" makes perfectly good sense, since everything is just behavior. I doubt that's what Geoff had in mind.

~~ Paul
 
Ian said:
No it's not, it's a priori. This is why the question of whether materialism is correct or not has nothing to do with science. No possible empirical data could show materialism to be true (or indeed false). It is entirely a metaphysical position.
I agree. So is idealism. As you say, that's why neither of them have anything to do with science. And that's why I'm not a materialist.

~~ Paul
 
Geoff said:
But it is quite different to claim that metaphysics itself cannot be done. It can, you just have to start by rejecting your conclusion that minds don't exist as an absurd position to take. People willing to accept your claim for the non-existence of minds (as a non-physical thing) will likely accept the rest of your position.
What do you mean by "as a non-physical thing"? You can't mean "as an emergent property," because I'm pretty sure Stimpy isn't saying that. If you mean "as a non-physical existent" then you're making an ontological statement even though you claim you're not.

You also say "... proceeding to claim that minds don't "really" exist." What does the quoted word "really" mean?

~~ Paul
 
Kevin

If A and B cannot be found apart, because they are always necessarily together, you can't just divide them up with a stoke of a pen. We have never experienced an experience without space and time, or at least I haven't. I can't imagine how you could justify any claim otherwise.....

Er....yes you have definately lost track of my position. I never claimed time and space could be spoken of as independent concepts... :con2:

quote:
--------------------------------------------------------------------------------

Two misunderstandings already here. For a start if there is "anything else" then it isn't "in there". "In there" implies a physical location and non-physical things don't have a physical location.

Second, given your own definition of "evidence", there can never be any evidence of a non-physical thing. So your "lack of evidence" is an irrelevant claim. You already "know" a priori that there "can't be any evidence", so the fact that none can be found demonstrates absolutely nothing.

--------------------------------------------------------------------------------

In response to the first remark, sure, you know what I mean.

Nope. I haven't got a clue what you mean. What's the point of a physical non-physical thing? You are simply saying "No non-physical physical things exist!". Great. You expect me to argue with that? :D

In response to the second, I have not defined away the possibility of a causally efficacious, non-physical thing. Such a thing is conceivable, it is just that there is absolutely no evidence for such a thing. Find some evidence and you will convince me and win a million dollars.

This presupposes that I should want to convince you or believe that Randi's money is winnable, and that it is desirable that someone should win it. It's a sort of "them and us" bunker mentality. "Either you're a materialist or your a woo-woo! If you're a woo-woo then claim that million or stop your lying!"

I see the whole situation as rather more complex than that. I'm not interested in trench warfare.

On the contrary, I am pointing out that given the total lack of evidence for efficacious non-physical thingies, belief in their existence is a supernatural belief just as belief in Thor is a supernatural belief.

We simply don't know whether some sort of non-physical causality exists. We don't know it does, and we don't know it doesn't. We might be able to state that if it does exist, it never turns up conclusively under laboratory conditions - but given the intrinsic nature of what we are discussing, that alone doesn't mean we can conclusively state that it doesn't exist. In short, there has been no resolution to the philosophical debate concerning free will, and if you don't think that is true I suggest you go here:

http://www.ucl.ac.uk/~uctytho/dfwIntroIndex.htm

When you present us with a genuine problem, as opposed to ones that rest on shaky foundations, that lies outside the range of science then we can start talking.

I don't have a single set of foundations. I am anti-foundationalist, precisely because I think all sets of foundations are shaky. Yours included.

quote:
--------------------------------------------------------------------------------

I repeat: my position doesn't require that we be able to find physical evidence for non-physical things. I'd have to be pretty dumb to be claiming that. You are violently assaulting a straw man, not my argument.

--------------------------------------------------------------------------------

I think you need to clarify what your position is a little, because to my way of thinking you must do exactly this if your claims are (analytic) a posteriori, right? A posteriori requires evidence, surely?

Sure. But I admit more things as evidence than you do. I suspect I have a rather different concept of "truth" also.

quote:
--------------------------------------------------------------------------------

Well, perhaps I am an idiot for wanting to go to University and study it then.

--------------------------------------------------------------------------------

You said it, not me.

So you claim to teach it, and you also suggest it is a waste of time studying it. That's a bit weird, isn't it?
 
Paul C. Anagnostopoulos said:
What do you mean by "as a non-physical thing"?

I mean that there exists a whole "language game" which applies to the content of direct experience, and that "physical" is a word which applies to a certain model of parts of those experiences - the experiences which correspond to an apparently existing physical world. It should be pointed out now that even for Berkeleyan subjective idealism, this "physical world" does still exist, it just exists in the form of information in a "metamind" rather than as a self-existing "underlying" physical substrate. So the idealist (apart from lifegazer), the neutral monist and the dualist all understand and recognise that there is a "physical" reality, external to human minds, the behaviour of which is described by materialistic scientific theories. The problem, IMO, is with the materialist, because the materialist not only wants to recognise the existence of this external physical reality, he also wants to claim that this external physical reality is the only thing which exists. So what do I mean by "a non-physical thing"? I mean my mind - everything I have ever experienced as a concious being. It's all non-physical. It may all correlate with something physical, but my mind itself is composed entirely of "non-physical things". Materialists at this point tend to look confused and say something like "But we don't understand what you could possibly mean? Non-physical?" And the debate rarely progresses from this point, in my experience.

You can't mean "as an emergent property," because I'm pretty sure Stimpy isn't saying that. If you mean "as a non-physical existent" then you're making an ontological statement even though you claim you're not.

I can't avoid making metaphysical inferences either. I'm not sure it is possible to have this discussion without taking some sort of metaphysical position.



You also say "... proceeding to claim that minds don't "really" exist." What does the quoted word "really" mean?

It was a direct usage of the word derived from the word "real". For a materialist non-physical minds aren't real. That is what the position has to be claiming. Physical things are real. Non-physical things, including my subjective experiences, aren't. As for what it means to say that minds aren't real? I haven't the faintest idea. :con2:
 
Geoff said:
It should be pointed out now that even for Berkeleyan subjective idealism, this "physical world" does still exist, it just exists in the form of information in a "metamind" rather than as a self-existing "underlying" physical substrate. So the idealist (apart from lifegazer), the neutral monist and the dualist all understand and recognise that there is a "physical" reality, external to human minds, the behaviour of which is described by materialistic scientific theories.
And what is the practical difference between saying that the physical world is part of the Metamind vs. saying that it is an underlying physical substrate?

The problem, IMO, is with the materialist, because the materialist not only wants to recognise the existence of this external physical reality, he also wants to claim that this external physical reality is the only thing which exists.
What is the difference between claiming this and claiming that the Metamind is the only thing that exists?

The reason some of say we are not materialists, I guess, is because we are not making any claims about the actual stuff of existence one way or the other.

So what do I mean by "a non-physical thing"? I mean my mind - everything I have ever experienced as a concious being. It's all non-physical. It may all correlate with something physical, but my mind itself is composed entirely of "non-physical things".
What is a "non-physical thing"? Sounds like it must be something other than information in the Metamind, and something other self-existing physical substrate. You have not enumerated a third alternative, so I am at a loss.

Materialists at this point tend to look confused and say something like "But we don't understand what you could possibly mean? Non-physical?" And the debate rarely progresses from this point, in my experience.
I'm all for progression. I claim that idealism and physicalism are equivalent. Convince me otherwise.

I can't avoid making metaphysical inferences either. I'm not sure it is possible to have this discussion without taking some sort of metaphysical position.
Sure you can. Just talk about what you can know, not about what stuff is.

It was a direct usage of the word derived from the word "real". For a materialist non-physical minds aren't real. That is what the position has to be claiming. Physical things are real. Non-physical things, including my subjective experiences, aren't. As for what it means to say that minds aren't real? I haven't the faintest idea.
I guess none of us are materialists then. I think the mind is real, for an appropriate definition of mind. If you insist on mind being a tangible, separable, self-sustaining thing, then I, too, would have to say it isn't real.

There is at least one problem here: We haven't agreed on what mind is. And if we insist on talking about what sort of stuff it is, we never will.

~~ Paul
 
Ian,

I was particularly thinking about Stimpson, yes. I don't think labeling 2 entirely differing types of existent as both being physical is particularly helpful, but nevertheless we could do that!
What two entirely different types of existent am I labeling as being physical, and in what way are they different?

But if we did we could no longer say, for example, that simply because materialism is correct (which it is by definition according to Stimpson and others on here), that we necessarily therefore cannot survive the destruction of our brains.
Nor would I make such a claim. Our inability to survive the destruction of our brains is not an a priori judgement. It's truth cannot be logically derived from just the definitions I am using. It is a posteriori judgement based on our observations. I have been trying to get this through to you for years, but no matter how many times I tell you, you never seem to notice. The claims that we cannot survive the death of our bodies, and that consciousness is a set of brain processes, are not a priori claims. They are not axioms, nor are they premises, nor are they assumptions. They are conclusions which I have drawn based on my observations.

But if the brain can cease to function, yet it is conceptually possible we could survive it, then how on earth is this materialism??
By there being something more to us than just brain activity. But whatever that something else is, it physically interacts with the brain, so it too is physical. Note that may position in no way requires that our current understanding of physical laws be correct.

He's just abusing the word materialism. He doesn't understand what it means.
You are the one who used the word "materialism", and furthermore asserted that my position is "by definition materialism", not I. So if anybody here is abusing it, it is you.

There's absolutely no point in arguing against him and Lowe. One can achieve nothing in the face of peoples' incorrigible stupidity.
Nor in the face of people who are unwilling to actually listen to what others say.

That does not necessarily follow. The question of whether or not what my definition refers to is actually nothing more than physical processes, is an a posteriori question.
No it's not, it's a priori. This is why the question of whether materialism is correct or not has nothing to do with science.
How is it a priori? Please explain to me how its truth value can be logically derived from the definitions of the terms. It certainly cannot be derived from the definitions I am using.

No possible empirical data could show materialism to be true (or indeed false). It is entirely a metaphysical position.
I never said anything about materialism, you did.

No, that just makes your behaviour empirically verifiable.
Incorrect. If the effects they have on my behavior were impossible to detect, then it would be meaningless to say that they actually affect it. Consider the brain. If my subjective experiences affect my brain activity, then in principle, we should be able to detect those effects. I is nonsensical to say that something physically affects something else, but that those effects cannot be detected.
A complete non-sequitur. Your response has absolutely nothing to do with his observation:

"No, that just makes your behaviour empirically verifiable".
It has everything to do with it. Saying that subjective experiences do physically affect the brain, but are not empirically verifiable, is logically self-contradictory. All physical affects are empirically verifiable, by definition.

You would claim my definitions were meaningless to you because they start from direct subjective experience which has no real place in your model. You can only make sense of "thought" in terms of physical processes.
This is not true. For one thing, I already told you that I do not define, nor think of "thought" in terms of physical processes. Second, it is only posteriori claims which I assert must be empirically verifiable in order to be meaningful. Definitions are not claims at all. So you should be able to define your terms with no problem, so long as you can do so without having your definitions implicitly assume the truth of posteriori claims which are not empirically verifiable. And if your epistemological framework is coherent at all, then your definitions should not implicitly depend on the truth of any posteriori claims anyway.

Any definition I provide of "thought", "subjectivity", "mind", "existence" and such like will be instantly rejected by you, rather obviously. And the epistemological justification is, also obviously, the fact that we have direct access to our own subjective experiences - another (IMO) blatantly obvious and endeniable fact that is neverthesless denied by people such as yourself. My position, and those of many like me, rather depends on people accepting that the non-existence of minds is prima facie absurd and the fact that we have direct access to our own subjective experience is an assumption that cannot seriously be questioned. If you reject those two claims, and you do, then we cannot proceed.
I do not reject them. What I do reject is the assertion that we can have "direct access" to the fact that these subjective experiences are not physical processes. This is not a justified belief. Nothing about your "direct access" to them in any way implies that they cannot be physical processes. The question of whether or not they are is a posteriori one, and cannot be determined through introspection.

I did not ask if you could justify it to me. I asked if your belief is justified. It is a question of intellectual honesty. Do you actually consider your belief to be justified?
Of course I do. It's justified by a line of reasoning which starts by taking consciousness and subjectivity seriously instead of starting from an assumption of materialism and proceeding to claim that minds don't "really" exist.
I don't understand this response. I do not claim that minds don't really exist either. I have already explained that my own epistemological framework also starts by beginning with subjective experiences. How you can characterize my position as "an assumption of materialism" after what I have said in this thread is completely beyond me.

Minds is where I start from. This is justified rather easily by stating that it is quite impossible to justify starting anywhere else! Your position is to take my starting point and claim you can't make sense of it - not because you are any less trapped in your own subjective experiences than I am - but via a long complicated argument involving all sorts of issues from epistemology to the philosophy of science.
Aside from your gross mischaracterization of my position, which is completely irrelevant to the question I asked you, I still do not see how "starting by taking consciousness and subjectivity seriously" allows you to determine that your belief that the meaning which you have assigned to Kant's writings is actually the meaning which he intended.

That's pretty much the situation. You claim that a problem exists, but do not appear to be able to explain what that problem is in a way that does not implicitly assume premises which have not been justified as being true.
Not "justified" by your system of justification, Stimpson.
Well, given that you are claiming that it is a problem with my epistemological system, I would say that justifying those assumptions by using a different epistemological system would not have any relevance whatsoever.

Personally, I don't see any need to justify the claim that my mind exists.
That is easy to justify, and not something which I am disputing.

I don't need science to tell me this. And I don't care if it happens to set up a contradiction with materialism, because I am not ideologically committed to that or to any other ontology.
I don't care if it does either. I am not a materialist (at least not in that sense), and I have no interest in that ontology at all. The existence of minds certainly does not set up a contradiction in my position.

I just know that my mind very definately exists, and by "mind" I mean the subjective experiences which comprise consciousness.
So do I. This issue is not in dispute. What is in dispute is the nature of subjective experience, not its existence. We both agree that it exists. The issues we disagree on are things like whether it is physical, whether it is possible for it to not be physical, what its relationship to the brain is, and so on.

For me, your whole way of defining things and making judgements puts the cart before the horse. In effect, the only strategy open to you is to claim that the big metaphysical questions aren't really questions at all. That is fine, but you are not going to stop other people, who are quite happy to start from an assumption that minds really do exist, from following a very different line of reasoning and actually trying to find an answer to those questions.
I have no interest in trying to stop people from wasting their time in such a way.

You have effectively chosen not to engage with metaphysics - that is your choice - but I maintain that you can't actually avoid allowing metaphysical assumptions influence what you believe are "objective judgements".
Then point some out. What metaphysical assumptions do you claim I am making? I can't think of any.

You are actually far more committed to your own metaphysical position than I am commited to any metaphysical position.
Then it would be helpful if you could tell me what my metaphysical position is, because I don't think I have one at all.

But it is quite different to claim that metaphysics itself cannot be done.
I guess that depends on what you mean by "doing metaphysics". If you mean waving your arms around and babbling incoherently about stuff you can't even define, then sure, it can be done.

It can, you just have to start by rejecting your conclusion that minds don't exist as an absurd position to take.
I have made no such conclusion. This is a ridiculous misrepresentation of my position, and is not even remotely justified by anything I have said.

People willing to accept your claim for the non-existence of minds (as a non-physical thing) will likely accept the rest of your position.
What does "non-existence of minds as a non-physical thing" mean? It sounds to me like nothing more than an attempt to verbally twist around the quite reasonable claim that minds are physical, to make it sound like I am claiming that minds don't exist at all.

I could just as easily say that you claim that minds don't exist, and then after doing so for a while put "as a physical thing" in parentheses. The bottom line is that we disagree on certain aspects of the nature of the mind, not on its existence. Twisting my words around and phrasing things to make it sound like I am denying the existence of the mind completely, is just dishonest.

I suspect those people are currently in a minority, and destined to remain that way. Not because the world is full of woo-woos but because it is genuinely an absurd position, and no scientific advance will change this. All the other people will either continue to learn about metaphysics or they will end up like Richard Rorty, who not only rejects metaphysics but also rejects epistemology.
It is not an absurd position to claim that the mind is physical. On the contrary, it is the only alternative to epiphenomenalism, which is incoherent.

Let me ask you this: Can the fact that the mind is not physical be logically derived solely from the definitions of "mind" and "physical"? If so, then please explain what those definitions are, and show your derivation, because I am pretty sure you are not using the same definitions I am.

If not, then the assertion that to claim that the mind is physical is "genuinely absurd" is a posteriori one, and requires some justification. Let's hear it.


Dr. Stupid
 
Stimpson J. Cat said:
II
--------------------------------------------------------------------------------
I was particularly thinking about Stimpson, yes. I don't think labeling 2 entirely differing types of existent as both being physical is particularly helpful, but nevertheless we could do that!
--------------------------------------------------------------------------------


What two entirely different types of existent am I labeling as being physical, and in what way are they different?

Consciousness and the physical realm. One is different from physical things and processes by virtue of the fact that one is conscious where as no physical things or processes are.

quote:
--------------------------------------------------------------------------------
But if we did we could no longer say, for example, that simply because materialism is correct (which it is by definition according to Stimpson and others on here), that we necessarily therefore cannot survive the destruction of our brains.
--------------------------------------------------------------------------------


Nor would I make such a claim.

Of course. You couldn't because you have provided no argument whatsoever to suggest any difficulty with the notion of survival.


Our inability to survive the destruction of our brains is not an a priori judgement.

That's correct. Unless one reenacts the appropriate physical processes whereby the illusion of oneself is reestablished, then necessarily it's entailed by materialism that the destruction of our brains leads to the destruction of us. And it's entailed too by any materialist type positions whereby it is held that brain processes are the genesis of consciousness. But such metaphysical positions cannot be known to be correct a priori.

It's truth cannot be logically derived from just the definitions I am using. It is a posteriori judgement based on our observations.

Our observations cannot give any evidence for the non-existence of consciousness, because consciousness is not physical and we can only observe physical things. Thus if you're saying your observations lead you to the conclusion that one ceases to exist after one dies, then you are presupposing that consciousness is physical, and I mean physical in the proper sense, not your revised definition of it. But since the sense in which you are using physical is simply that which affects other physical things, then you cannot therefore conclude anything from our observations.
 
II
But if the brain can cease to function, yet it is conceptually possible we could survive it, then how on earth is this materialism??
--------------------------------------------------------------------------------

Stimpson
By there being something more to us than just brain activity. But whatever that something else is, it physically interacts with the brain, so it too is physical. Note that may position in no way requires that our current understanding of physical laws be correct.

And I've already explained in a post above that simply labelling consciousness as physical does not achieve anything whatsoever. All you're doing is calling 2 wholly differing types of existent -- i.e physical things and consciousnesses -- as both being physical. But simply calling something physical does not alter its fundamental nature.

As I've patiently explained to you many many times before, the causal efficacy of consciousness is of a completely different nature to physical causality. The planets orbit the Sun because of gravity, or if you reject the notion of a generative efficient causal power in nature, then alternatively they orbit the Sun just because that's the way the world is i.e there is no explanation for it. Some of our behaviour is of a quite different order to this. I decide to go on a course because of my intentions. That is I weigh up all the advantages and disadvantages of embarking on a course and this will influence my eventual decision as to whether I go on such a course. There is no similarity in this scenario to an explanation of why the Earth goes round the Sun.

More devastatingly to your position though is that the causal power of consciousness has nothing to do with consciousness itself. It is what consciousness does or what its powers are, not what it is. The physical realm however is only known through the fact of its causal powers. If there is anything else to the physical realm, than from the empirical perspective we can never know about it.




--------------------------------------------------------------------------------
That does not necessarily follow. The question of whether or not what my definition refers to is actually nothing more than physical processes, is an a posteriori question.
--------------------------------------------------------------------------------


No it's not, it's a priori. This is why the question of whether materialism is correct or not has nothing to do with science.
--------------------------------------------------------------------------------


How is it a priori? Please explain to me how its truth value can be logically derived from the definitions of the terms. It certainly cannot be derived from the definitions I am using.

A physical process -- even brain processes -- are defined by their causal efficacy. Consciousness is known by the qualitative subjective feel. It is not at all constituted by its causal powers. Consciousness has the property of causal efficacy but is not constituted by it.
 
Ian,

What two entirely different types of existent am I labeling as being physical, and in what way are they different?
Consciousness and the physical realm. One is different from physical things and processes by virtue of the fact that one is conscious where as no physical things or processes are.
How do you define "physical realm"?

But if we did we could no longer say, for example, that simply because materialism is correct (which it is by definition according to Stimpson and others on here), that we necessarily therefore cannot survive the destruction of our brains.
Nor would I make such a claim.
Of course. You couldn't because you have provided no argument whatsoever to suggest any difficulty with the notion of survival.
I said that I would not claim that "simply because materialism is correct that we necessarily therefore cannot survive the destruction of our brains". I did not say that I would not claim that we cannot survive the destruction of our brains. There are plenty of very good arguments for why we cannot. Materialism's got nothing to do with it. Besides, I am not a materialist. Not in the sense you mean, anyway.

Our inability to survive the destruction of our brains is not an a priori judgement.
That's correct. Unless one reenacts the appropriate physical processes whereby the illusion of oneself is reestablished, then necessarily it's entailed by materialism that the destruction of our brains leads to the destruction of us.
No, it isn't. Materialism is quite compatible with the possibility of survival of destruction of the brain. You are clearly confusing materialism with the hypothesis that there is nothing more to you than brain processes. Materialism does not require that this hypothesis be true. It only requires that if there is something more to you than just brain processes, then that other stuff must be physical too.

And it's entailed too by any materialist type positions whereby it is held that brain processes are the genesis of consciousness. But such metaphysical positions cannot be known to be correct a priori.
Well, you are correct that metaphysical positions cannot be known to be correct a priori. Nor can they be known to be correct a postiori. But the hypothesis that consciousness is a set of brain processes is not a metaphysical hypothesis. Not unless your definition of "consciousness" implicitly stipulates that it includes aspects which cannot be empirically verified. And since that is, itself, a posteriori judgement, it makes absolutely no sense to include it in your definitions. There is no need to define "consciousness" in such a way as to presume that some or all of its aspects are non-physical. Simply define it without making reference to the issue of physicallity at all, and then leave the posteriori question of whether or not any of its aspects are non-physical as a question to be answered. In this case, the issue is purely epistemological. Metaphysics never enters into it.

It's truth cannot be logically derived from just the definitions I am using. It is a posteriori judgement based on our observations.
Our observations cannot give any evidence for the non-existence of consciousness, because consciousness is not physical and we can only observe physical things.
The claim that consciousness is non-physical (or non-observable) is a posteriori claim which requires justification. You have provided none. It is also a claim which is easily demonstrated to be false, unless you define consciousness to be something which does not affect your behavior in any way, in which case what you are calling "consciousness" isn't what anybody actually thinks of as their consciousness, and isn't anything which any of us have any reason to believe we have.

Thus if you're saying your observations lead you to the conclusion that one ceases to exist after one dies, then you are presupposing that consciousness is physical, and I mean physical in the proper sense, not your revised definition of it.
What sense would that be? You haven't defined it yet. My definition of it is what scientists mean when they say "physical". It is what the people who believe consciousness is physical mean when they say "physical". Your definition of the term has absolutely zero relevance to my, or anybody else's actual position.

But since the sense in which you are using physical is simply that which affects other physical things, then you cannot therefore conclude anything from our observations.
Huh? Why on Earth not? Consciousness affect behavior. I can therefore conclude all sorts of things about consciousness by observing behavior. Whether you call it "physical" or not does not even matter. What matters is that we can, and do, learn about consciousness by observing behavior (both in the sense of overt behavior and in the sense of brain activity).

And I've already explained in a post above that simply labelling consciousness as physical does not achieve anything whatsoever.
Nor does simply labeling it "non-physical". But you know what has accomplished something? Science. In the past 50 years neuroscientists and psychologists have added far more to our understanding of the mind then all of the philosophers of mind from previous centuries put together.

All you're doing is calling 2 wholly differing types of existent -- i.e physical things and consciousnesses -- as both being physical. But simply calling something physical does not alter its fundamental nature.
Nor does simply calling it "non-physical". Interacting with other physical stuff is part of the nature of consciousness. The nature of consciousness is such that we can study it scientifically by observing behavior and brain activity. Your insistence that we call it "non-physical" doesn't change this, and you burying your head in the sand and insisting dogmatically that none of what we have scientifically learned is actually information about consciousness, doesn't change the fact that this knowledge has resulted in all sorts of actual benefits to mankind.

As I've patiently explained to you many many times before, the causal efficacy of consciousness is of a completely different nature to physical causality. The planets orbit the Sun because of gravity, or if you reject the notion of a generative efficient causal power in nature, then alternatively they orbit the Sun just because that's the way the world is i.e there is no explanation for it. Some of our behaviour is of a quite different order to this. I decide to go on a course because of my intentions. That is I weigh up all the advantages and disadvantages of embarking on a course and this will influence my eventual decision as to whether I go on such a course. There is no similarity in this scenario to an explanation of why the Earth goes round the Sun.
So you claim, over and over again. I know this is what you believe. You don't have to keep telling me over and over again that it is. If you actually want me to agree with you, you are going to have to give me some good reason to think that this is actually true.

More devastatingly to your position though is that the causal power of consciousness has nothing to do with consciousness itself. It is what consciousness does or what its powers are, not what it is.
Yeah, right. And what we think of as an electron is only what the electron does, not what it is. I think it is truly impossible for me to care less about such meaningless drivel.

The physical realm however is only known through the fact of its causal powers. If there is anything else to the physical realm, than from the empirical perspective we can never know about it.
The same is true for consciousness, as evidenced by the fact that there is no aspect of your consciousness which you know about which does not in some way affect your behavior.

How is it a priori? Please explain to me how its truth value can be logically derived from the definitions of the terms. It certainly cannot be derived from the definitions I am using.
A physical process -- even brain processes -- are defined by their causal efficacy. Consciousness is known by the qualitative subjective feel. It is not at all constituted by its causal powers. Consciousness has the property of causal efficacy but is not constituted by it.
In order for this to be true, there would have to be aspects of your consciousness which you know about, but which are incapable of affecting your behavior. There aren't, so you are simply wrong.


Dr. Stupid
 
Hi Paul

And what is the practical difference between saying that the physical world is part of the Metamind vs. saying that it is an underlying physical substrate?

Who said anything about "practical"?

If your goal is to try to understand metaphysical questions and answers then "practicality" may not neccesarily be your main motivating factor.

However, it does make a difference to the way you think about other philosophical questions, and these affect the way you think about lots of things. So in terms of practical science it only makes a difference in areas that are already so borderline that they are controversial already.

It's not me who is wailing about the need for a scientific revolution here. It may have some serious implications for cognitive science, but as it stands that subject is only quasi-scientific to begin with.

Basically, at least 99% of physical science continues exactly as before. It makes little or no practical difference whatsoever.

quote:
--------------------------------------------------------------------------------
The problem, IMO, is with the materialist, because the materialist not only wants to recognise the existence of this external physical reality, he also wants to claim that this external physical reality is the only thing which exists.
--------------------------------------------------------------------------------

What is the difference between claiming this and claiming that the Metamind is the only thing that exists?

You can't sensibly argue that without qualifying it in such a way that it once more doesn't make any difference. You can argue that the metamind is the only thing which exists provided you also argue that

a) human minds are part of the metamind

and

b) the "physical world" exists directly in the metamind whereas human minds are dependent on sense data. Our minds are are "embedded" in physical reality in a way that the metamind itself isn't.

As a result, you still end up arguing that the physical world is external to human minds. That is why I defend the claim that scientific realism is compatible with Berkeleyanism. The alternative is gazerism, and that leads to all sorts of absurd conclusions.

The reason some of say we are not materialists, I guess, is because we are not making any claims about the actual stuff of existence one way or the other.

That's a good reason not to claim you are a materialist, yes. :)

quote:
--------------------------------------------------------------------------------
So what do I mean by "a non-physical thing"? I mean my mind - everything I have ever experienced as a concious being. It's all non-physical. It may all correlate with something physical, but my mind itself is composed entirely of "non-physical things".
--------------------------------------------------------------------------------

What is a "non-physical thing"? Sounds like it must be something other than information in the Metamind, and something other self-existing physical substrate. You have not enumerated a third alternative, so I am at a loss.

That's because these things are simultaneously the same and different, depending on your frame of reference. We live in what appears to us to be a dualistic reality - the "explicate order", but in the "implicate order" the duality doesn't exist. Therefore the only real dualism exists between the implicate and explicate orders, not mind or matter. But being a neutral monist doesn't prevent me from talking about both mind and matter having some sort of meaningful (real) existence.

I'm all for progression. I claim that idealism and physicalism are equivalent. Convince me otherwise.

In some ways they are. They are equivalently wrong, IMO. Although neither of them are completely wrong. I think both views can contribute to a more complex position.

quote:
--------------------------------------------------------------------------------
I can't avoid making metaphysical inferences either. I'm not sure it is possible to have this discussion without taking some sort of metaphysical position.
--------------------------------------------------------------------------------

Sure you can. Just talk about what you can know, not about what stuff is.

OK, but you have to be much more careful to achieve this than some people around here have been. It's easier said than done. Assumptions creep in all over the place.

quote:
--------------------------------------------------------------------------------
It was a direct usage of the word derived from the word "real". For a materialist non-physical minds aren't real. That is what the position has to be claiming. Physical things are real. Non-physical things, including my subjective experiences, aren't. As for what it means to say that minds aren't real? I haven't the faintest idea.
--------------------------------------------------------------------------------

I guess none of us are materialists then. I think the mind is real, for an appropriate definition of mind. If you insist on mind being a tangible, separable, self-sustaining thing, then I, too, would have to say it isn't real.

I never said "tangible, separable, self-sustaining". Neither did I imply them. They can be different yet inseperable. I think the Yin/Yang symbol is a good representation of the relationship. Yin isn't Yang, yet their existence is mutually inter-dependent.
 
Stimpson
--------------------------------------------------------------------------------
What two entirely different types of existent am I labeling as being physical, and in what way are they different?
--------------------------------------------------------------------------------

II
Consciousness and the physical realm. One is different from physical things and processes by virtue of the fact that one is conscious where as no physical things or processes are.
--------------------------------------------------------------------------------

Stimpson
How do you define "physical realm"?

It's the realm that reductivist science studies. It is either that which constitutes our sensory qualia, or that which is able to relate the patterns in our sensory qualia as part of our ongoing experiences.

II
--------------------------------------------------------------------------------
But if we did we could no longer say, for example, that simply because materialism is correct (which it is by definition according to Stimpson and others on here), that we necessarily therefore cannot survive the destruction of our brains.
--------------------------------------------------------------------------------


Nor would I make such a claim.
--------------------------------------------------------------------------------


Of course. You couldn't because you have provided no argument whatsoever to suggest any difficulty with the notion of survival.
--------------------------------------------------------------------------------


I said that I would not claim that "simply because materialism is correct that we necessarily therefore cannot survive the destruction of our brains". I did not say that I would not claim that we cannot survive the destruction of our brains.

Yes I know, I understand that.

There are plenty of very good arguments for why we cannot.

There are some. There are also arguments for the opposing position.


--------------------------------------------------------------------------------
Our inability to survive the destruction of our brains is not an a priori judgement.
--------------------------------------------------------------------------------


That's correct. Unless one reenacts the appropriate physical processes whereby the illusion of oneself is reestablished, then necessarily it's entailed by materialism that the destruction of our brains leads to the destruction of us.
--------------------------------------------------------------------------------


No, it isn't. Materialism is quite compatible with the possibility of survival of destruction of the brain. You are clearly confusing materialism with the hypothesis that there is nothing more to you than brain processes. Materialism does not require that this hypothesis be true. It only requires that if there is something more to you than just brain processes, then that other stuff must be physical too.

I am well aware of what it requires, and I have argued that if consciousness is not the same as brain processes, but nevertheless affects such processes, then such consciousness would not be physical because the causal power of consciousness does not equate to consciousness itself. In other words such interaction between consciousness and brain processes would be interactive dualism rather than materialism.

Of course such interactive dualism is perfectly compatible with the idea that consciousness has its genesis in the brain and there is no "life after death". If you define such a position as a materialist one, then ok. But those who call themselves materialists would not normally subscribe to such an interaction. It seems to me that downward causation is not compatible with materialism.


--------------------------------------------------------------------------------
And it's entailed too by any materialist type positions whereby it is held that brain processes are the genesis of consciousness. But such metaphysical positions cannot be known to be correct a priori.
--------------------------------------------------------------------------------


Well, you are correct that metaphysical positions cannot be known to be correct a priori. Nor can they be known to be correct a postiori.

Right, so brain/consciousness correlations do not constitute knowledge that the latter are the result of the former? I agree.

But the hypothesis that consciousness is a set of brain processes is not a metaphysical hypothesis. Not unless your definition of "consciousness" implicitly stipulates that it includes aspects which cannot be empirically verified.

My understanding of consciousness does stipulate that and more. That is to say there are not only aspects of consciousness which cannot be empirically verified, but the whole of consciousness cannot be empirically verified. All we can empirically do is discover relations between particular types of conscious experience and particular activity in the brain.

And since that is, itself, a posteriori judgement, it makes absolutely no sense to include it in your definitions. There is no need to define "consciousness" in such a way as to presume that some or all of its aspects are non-physical.

I do not have a definition of consciousness. I do not thi . . . . nay I know it is not possible to define. I directly experience consciousness. My inner qualitative subjective feel is my consciousness, and it is quite distinct from tables and chairs and electrons. Indeed there is no similarity whatsoever. Given that it is utterly different from all physical things, I see nothing to be gained in labelling it as physical. Whether we call consciousness physical or non-physical doesn't alter the fact that felt qualitative experiences have nothing in common whatsoever with rocks or tables.



--------------------------------------------------------------------------------
It's truth cannot be logically derived from just the definitions I am using. It is a posteriori judgement based on our observations.
--------------------------------------------------------------------------------


Our observations cannot give any evidence for the non-existence of consciousness, because consciousness is not physical and we can only observe physical things.
--------------------------------------------------------------------------------


The claim that consciousness is non-physical (or non-observable) is a posteriori claim which requires justification. You have provided none. It is also a claim which is easily demonstrated to be false, unless you define consciousness to be something which does not affect your behavior in any way, in which case what you are calling "consciousness" isn't what anybody actually thinks of as their consciousness, and isn't anything which any of us have any reason to believe we have.

We only infer consciousness from our behaviour. This is in contrast to various physical entities which we indirectly observe. The reality of physical things is exhausted by the role they play in some fruitful theory describing the world. There is nothing more to an electron than such a role. But consciousness is not constituted by its causal powers. Rather it is constituted by raw experiences.


--------------------------------------------------------------------------------
Thus if you're saying your observations lead you to the conclusion that one ceases to exist after one dies, then you are presupposing that consciousness is physical, and I mean physical in the proper sense, not your revised definition of it.
--------------------------------------------------------------------------------


What sense would that be? You haven't defined it yet. My definition of it is what scientists mean when they say "physical". It is what the people who believe consciousness is physical mean when they say "physical". Your definition of the term has absolutely zero relevance to my, or anybody else's actual position.

I do not believe that my definition of the physical differs from yours and others apart from the fact that you and others say that consciousness is physical.


--------------------------------------------------------------------------------
But since the sense in which you are using physical is simply that which affects other physical things, then you cannot therefore conclude anything from our observations.
--------------------------------------------------------------------------------


Huh? Why on Earth not? Consciousness affect behavior. I can therefore conclude all sorts of things about consciousness by observing behavior.

Hang on. So what can you conclude about the consciousness of a boulder as it rolls down a hill? Obviously nothing, so why are human beings special? They ought not to be according to materialists. If we can infer nothing about a boulder's consciousness by observing its behaviour, then by the same principle we can infer nothing about the consciousness of other people by observing their behaviour. Other peoples bodies behave as they do because of physical laws just as much as the rolling boulder does, or indeed any other physical process in the Universe.
 
Geoff said:
Who said anything about "practical"?

If your goal is to try to understand metaphysical questions and answers then "practicality" may not neccesarily be your main motivating factor.
Well, if there is no practical difference, then I maintain my claim that there is no meaningful difference at all.

However, it does make a difference to the way you think about other philosophical questions, and these affect the way you think about lots of things.
Such as?

You can't sensibly argue that without qualifying it in such a way that it once more doesn't make any difference. You can argue that the metamind is the only thing which exists provided you also argue that

a) human minds are part of the metamind

and

b) the "physical world" exists directly in the metamind whereas human minds are dependent on sense data. Our minds are are "embedded" in physical reality in a way that the metamind itself isn't.
Why argue this instead of:
You can't sensibly argue that without qualifying it in such a way that it once more doesn't make any difference. You can argue that the physical world is the only thing which exists provided you also argue that

a) human minds are physical

and

b) the "external physical world" exists directly in the physical world whereas human minds are dependent on sense data. Our minds are "embedded" in physical reality in a way that low-level physical reality itself isn't, just as with any emergent property.

~~ Paul
 

Back
Top Bottom