A Philosopher Defends Religion - Thomas Nagel
Well, the forum swallowed two posts I tried to write on Nagel's Mind & Cosmos. Here's the short version.
It's good and worth a read, and it presents an interesting sort of middle ground for atheist reductionists and theist anti-reductionists. We'll all agree with parts and disagree with others, so I think it'd make for a good discussion. Anyone interested in a thread devoted to it? We could do it in SMP or RGT.
It's good and worth a read, and it presents an interesting sort of middle ground for atheist reductionists and theist anti-reductionists. We'll all agree with parts and disagree with others, so I think it'd make for a good discussion. Anyone interested in a thread devoted to it? We could do it in SMP or RGT.
And I similarly took the time to respond in length to you, with you just ignoring the entire body of my exposition that (I thought) clarified a substantial confusion going on in your recent responses.
The difference was, I didn't feel the need to call yours rambling garbage that failed to make a cogent point. Even if I thought it was exactly that.
The difference was, I didn't feel the need to call yours rambling garbage that failed to make a cogent point. Even if I thought it was exactly that.
If you think my exposition wasn't cogent, that's fine. Say so. Say it doesn't make sense. Tell me where I can be more clear. What was incoherent about it? Don't ramble for five paragraphs and then tell me that you're just assuming the conclusion!
We accept as reality the fact that we are having this conversation, so that humans have the capacity for abstract mental content. I explained why I think that materialist evolution doesn't provide a sufficiently robust account of it. What is your response? "I am assuming we can and did evolve to our current state [on a materialistic evolutionary basis]."
The WHOLE ARTICLE is about Plantiga's argument that the materialist evolutionary view is not sufficient to account for the mental processes we are using. Nagel agrees. What are you doing ITT if you're just assuming your conclusion?
[And the fact that you STILL don't even know what a goddidit argument is...]
Nope, you missed the point. Try and read the garbage rambling again. Remember, you didn't say my post was not cogent, you said it was rambling garbage. If you cannot constrain your tendency towards unrelenting condescension, I have no interest in discussing things with you, especially when you miss the point.
Lol. Oh you got me good, I did miss a "just" in that statement. You didn't JUST say my post was not cogent, you also said it was rambling, and then, garbage. Which is, of course, the point that, as the other threads amply demonstrated, you simply cannot find it within you, despite me repeatedly asking you, to drop the condescension. Talk about the issues, not how much you think my posts are garbage because - believe me - I am very much returning that particular favour. In this case, you have not talked about the actual issues I raised in that rambling garbage post of mine, with the exception of very briefly in the above which demonstrates you entirely missed the point, which is perhaps why you thought it was garbage.
I don't know why you bother.
One is tempted to say something like this with is remarkably apt, in response to your unwillingness to actually address the post that you called garbage rambling:
Except that would be insufferably rude. Not that this stopped you.
If you're too lazy to read what's been written, it's not really my problem. If you ask questions that at least remotely appear interested in actually understanding something (and made a meaningful attempt at understanding), then maybe you'll get a different response.
Edit: Your style of posting reminds me of another poster who hasn't posted here in a while. He would never actually take the time to understand what anyone was saying, and keep trying to push his position forward despite clear and repeated criticisms from all sides.
Edit: Your style of posting reminds me of another poster who hasn't posted here in a while. He would never actually take the time to understand what anyone was saying, and keep trying to push his position forward despite clear and repeated criticisms from all sides.
From the article
Now now we have a new cognitive function that is obviously never explained, but whose function the philosopher knows is malfunctioning or blocked in atheists (Why? Why would a God who wants our sense perception to orient towards truth block or make this malfunction? ). Also, whose function seems to be pointing fully half the current world's population away from Christianity but also seems to be dividing Christians into more and more sects who claim to have the truth.
a wholly different kettle of fish: according to the Christian tradition (including both Thomas Aquinas and John Calvin), faith is a special gift from God, not part of our ordinary epistemic equipment. Faith is a source of belief, a source that goes beyond the faculties included in reason.
God endows human beings with a sensus divinitatis that ordinarily leads them to believe in him. (In atheists the sensus divinitatis is either blocked or not functioning properly.) In addition, God acts in the world more selectively by “enabling Christians to see the truth of the central teachings of the Gospel.”
God endows human beings with a sensus divinitatis that ordinarily leads them to believe in him. (In atheists the sensus divinitatis is either blocked or not functioning properly.) In addition, God acts in the world more selectively by “enabling Christians to see the truth of the central teachings of the Gospel.”
Talk about the issues, not how much you think my posts are garbage because - believe me - I am very much returning that particular favour. In this case, you have not talked about the actual issues I raised in that rambling garbage post of mine, with the exception of very briefly in the above which demonstrates you entirely missed the point, which is perhaps why you thought it was garbage.
Question 3 is not an epistemological question. It is an ontological question. Namely, you are questioning whether it is even possible for advanced concepts to "exist" or what that might mean, not whether we could have evolved capacities to know, in an epistemological sense, these concepts.
1) Numbers are immaterial.
2) Immaterial objects do not exist to the materialist.
3) You are using a reality-correspondence definition of truth.
4) Non-existent objects cannot correspond to reality, so statements about such objects cannot be true.
5) Under your framework, you cannot say that "There exist infinitely many primes" is a true statement.
If these things do not exist, then you cannot have a meaninful epistemology because of the truth-correspondence definition you are trying to apply. It's simply meaningless. You require some sort of "consistency" framework or *SOMETHING* in order for you to advance your position. But if you use a "consistency" framework, you lose reality-correspondence. Either way, you don't have a meaningful position and the end result is that you have a bunch of words that don't mean anything at all.
The problems you have run so deep that you basically need to sit in a room for a while and just think about what you're trying to say for a long time. The issues being raised are deep, not superficial. You're approaching it at a superficial level, so it's clear why you aren't making sense of the actual issues being raised.
The problems you have run so deep that you basically need to sit in a room for a while and just think about what you're trying to say for a long time. The issues being raised are deep, not superficial. You're approaching it at a superficial level, so it's clear why you aren't making sense of the actual issues being raised.
Perhaps, perhaps, such unrelenting condescension would be sufferable if you were fully internalizing my posts and responding to them cogently. However, it seems you have (yet again) entirely missed the point of my garbage ramble. For example, you didn't even notice that the following is exactly a point I made n three separate occasion in my garbage ramble, for example in literally the next sentence after what you quoted.
My suggestion to you is to do the following:
The problems you have run so deep that you basically need to sit in a room for a while and just think about what you're trying to say for a long time. The issues being raised are deep, not superficial. You're approaching it at a superficial level, so it's clear why you aren't making sense of the actual issues being raised.
You are trying to appeal to too many different themes at the same time, and it's simply become completely incoherent.
Not to mention asserting that I was espousing some framework here while missing what I was doing was delineating the different issues going on in YOUR framework, not mine.
Originally Posted by me
The WHOLE ARTICLE is about Plantiga's argument that the materialist evolutionary view is not sufficient to account for the mental processes we are using.
Indeed, consider the following:
Remember, as you have emphatically agreed, this is not a question of infallibility, it is a question of reliability. The mental process a dog has (that is being tricked in pavlovs experiment) is a reliably truth-apt process. Namely, the dog has the ability to do pattern recognition of the form "if A happens, then B happens". So it can learn that "If a bell rings, then I get fed". Clearly this type of mental faculty is going to be very advantageous and for the most part the dog will learn true things about the world. So it is reliable, even if it can tricked in this specific case. Likewise, we can ask if the processes by which we come up with "there exist infinitely many primes" is generally reliably truth apt.
You think that one paragraph from Nagel is a criticism of the theistic framework? Read it again:
Plantinga’s version of this argument suffers from lack of attention to naturalist theories of mental content—i.e., theories about what makes a particular brain state the belief that it is, in virtue of which it can be true or false. Most naturalists would hold that there is an intimate connection between the content of a belief and its role in controlling an organism’s behavioral interaction with the world. To oversimplify: they might hold, for example, that a state of someone’s brain constitutes the belief that there is a dangerous animal in front of him if it is a state generally caused by encounters with bears, rattlesnakes, etc., and that generally causes flight or other defensive behavior. This is the basis for the widespread conviction that evolutionary naturalism makes it probable that our perceptual beliefs, and those formed by basic deductive and inductive inference, are in general reliable.
You have no clue what you're talking about, and you're just chattering incoherently. If you don't want to be told you're being incoherent, stop being incoherent.
Take the time to figure out what you're really trying to argue, and start over again. I suggest you come up with a short statement of the position you're actually trying to put forth. My position can be summarized by the following:
A materialistic evolutionary framework alone is insufficiently robust to account for the applicability of immaterial truth claims to the universe; in particular, one should not expect that materilistic evolutionary pressures should successfully select immaterial truth-apt cognitive processes which hold deep consistency and make successful predictions for beliefs about reality which are far removed from evolutionary advantages.
Everything else is a detail about that position. It's an expansion of detail of a certain element of that, or a discussion of a certain perspective within the broader framework, or an extension of that position applied to something else. (It doesn't touch upon the secondary argument that one should expect these things from a theistic framework as put forth by Plantiga, but that's not necessary and nobody has really raised meaningful criticism against that view.)
You may think it's condescending, and that's fine with me. I'm telling you that you're wrong about your understanding of the entire conversation. Not only are you wrong, but you're upside down and backwards wrong. Not only that, but you show an unwillingness to take the time to get it right. So if you feel condescended because I'm calling you out on gibberish posts, so be it.
Btw, I am amused you conveniently didn't respond to this:
For example, you didn't even notice that the following is exactly a point I made n three separate occasion in my garbage ramble, for example in literally the next sentence after what you quoted.
If Christianity is true we can expect humans senses are truth atuned. How do we determine if Christianity is true? Though our senses of course, which we can't trust unless we assume Christianity is true. Weeeeeeeee!!!
This was rolled into the conversation of the nature of truth. You are presenting what was described ITT a the behavioral definition of truth. The behavioral definition was rejected by Original Position.
(Uke's comments are a bit slippery on the matter, which was drawn out slightly in the Pavlov example and in his use of "true that X is a better hunting strategy" -- which really *IS* a behavioral definition of truth even though he doesn't admit it. He's not discussing the cognitive process (and mental content) of determining that the strategy is better but rather the outcome of employing the strategy. I decided that it's just not worth chasing that down with him. If you would like, you can press him on the matter. I would suggest aiming at the distinction between abstract mental content and stimulus-response, which returns back to the Pavlovian dog. The dog can "believe" that the bell ringing means BOTH "food" and "no food" and be both right and wrong in some cases, and this type of truth is much difference than the type of truth necessary to parse a statement like "there exist infinitely many primes" which is only true and never false, and independent of the environment in which the question is posed. This helps to draw a clearer line between material and immaterial truths.)
Original Position brought in the language of "truth-apt" to describe the learning mechanisms for evolution. I can grant truth-apt (truth as reality correspondence) for material truths (since evolution is a material process). I do not grant truth-apt for immaterial truths (because there is no accounting for what pressures can create immaterial-truth-apt processes). He has not responded to anything on the topic of immaterial-truth-apt, and I look forward to seeing his perspective. I suspect he actually falls in line with Nagel here, and doesn't find materialist evolution sufficiently robust (he's usually quite cautious about his claims and probably wouldn't be caught over-claiming the strength of his position):
It's important also to note that Original Position takes the existence of "actual" mental content as a given. The distinction between the fly buzzing away in reaction to the hand swatting at it and the fly cognitively processing something like "If I move, I increase my chances of survival" is an important jump. Nobody (that I can recall) has made an affirmative argument that such mental content *should* result from materialistic evolution. It's merely taken for granted that it does (which is similar to evolution explaining the progression of life after it has started, but not the start of life itself -- and this is also conceded in Nagel's quote).
So you're right that there is a concession here to discussing only post-abstract mental content man. An easier (but less interesting) place to draw up a challenge is on the appearance of abstract mental content in the first place. But I expect this will just raise a lot of empty noise from the other side and not much content. To the best of my knowledge, there's no accounting for why life comes about in the materialist evolutionary perspective. I touched on this briefly:
I hope this helps to expand the state of the discussion on that front.
(Uke's comments are a bit slippery on the matter, which was drawn out slightly in the Pavlov example and in his use of "true that X is a better hunting strategy" -- which really *IS* a behavioral definition of truth even though he doesn't admit it. He's not discussing the cognitive process (and mental content) of determining that the strategy is better but rather the outcome of employing the strategy. I decided that it's just not worth chasing that down with him. If you would like, you can press him on the matter. I would suggest aiming at the distinction between abstract mental content and stimulus-response, which returns back to the Pavlovian dog. The dog can "believe" that the bell ringing means BOTH "food" and "no food" and be both right and wrong in some cases, and this type of truth is much difference than the type of truth necessary to parse a statement like "there exist infinitely many primes" which is only true and never false, and independent of the environment in which the question is posed. This helps to draw a clearer line between material and immaterial truths.)
Original Position brought in the language of "truth-apt" to describe the learning mechanisms for evolution. I can grant truth-apt (truth as reality correspondence) for material truths (since evolution is a material process). I do not grant truth-apt for immaterial truths (because there is no accounting for what pressures can create immaterial-truth-apt processes). He has not responded to anything on the topic of immaterial-truth-apt, and I look forward to seeing his perspective. I suspect he actually falls in line with Nagel here, and doesn't find materialist evolution sufficiently robust (he's usually quite cautious about his claims and probably wouldn't be caught over-claiming the strength of his position):
It's important also to note that Original Position takes the existence of "actual" mental content as a given. The distinction between the fly buzzing away in reaction to the hand swatting at it and the fly cognitively processing something like "If I move, I increase my chances of survival" is an important jump. Nobody (that I can recall) has made an affirmative argument that such mental content *should* result from materialistic evolution. It's merely taken for granted that it does (which is similar to evolution explaining the progression of life after it has started, but not the start of life itself -- and this is also conceded in Nagel's quote).
So you're right that there is a concession here to discussing only post-abstract mental content man. An easier (but less interesting) place to draw up a challenge is on the appearance of abstract mental content in the first place. But I expect this will just raise a lot of empty noise from the other side and not much content. To the best of my knowledge, there's no accounting for why life comes about in the materialist evolutionary perspective. I touched on this briefly:
I hope this helps to expand the state of the discussion on that front.
Original Position brought in the language of "truth-apt" to describe the learning mechanisms for evolution. I can grant truth-apt (truth as reality correspondence) for material truths (since evolution is a material process). I do not grant truth-apt for immaterial truths (because there is no accounting for what pressures can create immaterial-truth-apt processes).
From earlier:
Originally Posted by Aaron W.
One reason I'm not quite happy with the material/immaterial framework is because there is an overlap. For example, small number arithmetic exists as both material and immaterial. "Two tigers" plus "two tigers" is "four tigers" and 2+2=4 are roughly the same thing. But there's clearly no material arithmetic of "One googol tigers" plus "one googol tigers" -- and this works for any physical object for sufficiently large numbers.
Right so the question is how did we go from number sense to mathematics. It's not that the materialistic arithmetic ( number sense or counting by a logarithmic scale) like humans are born innate to do can't account for immaterial numbers, but how can we account from the leap from a number sense to a base 5,10,20 etc. scale? Or is it how do we account for human beings being able to deal with large numbers?
Right so the question is how did we go from number sense to mathematics. It's not that the materialistic arithmetic ( number sense or counting by a logarithmic scale) like humans are born innate to do can't account for immaterial numbers, but how can we account from the leap from a number sense to a base 5,10,20 etc. scale? Or is it how do we account for human beings being able to deal with large numbers?
I take it we're moving beyond Plantinga's original argument, that claimed that a global skepticism resulted from naturalism plus evolution to the claim that with regards to specific domains of knowledge--beliefs about immaterial objects, with mathematical beliefs being the primary example--that the naturalist (materialist?) cannot justify the claim that their cognitive processes are truth-apt.
I'll start by acknowledging that I am not very comfortable with my position here. Mathematics has long been one of the most difficult cases of knowledge for hardcore empiricists like myself to explain, and I haven't really settled on a view that I find particularly satisfactory. So the reply I give to your challenge below is offered more as a way to advance the conversation than as describing my own views on the topic.
Anyway, here are a couple of places where I would attack your claim. First, you've referred to an "immaterial...cognitive process" and "immaterial truth claim." As I previously stated, I'm assuming a materialistic mental content (if we aren't, then we don't need to bother with this argument). Thus, your statement would be understood as a materialist mental content about an immaterial reality. In other words, you are assuming some version of mathematical Platonism. While some naturalists are mathematical Platonists, lots of them reject Platonism. Thus, insofar as your argument relies on this assumption, it can be challenged by these naturalists. My guess is that you'll still object, but you'll have to reframe your objection within a materialistic ontology.
Second, the naturalists that do accept platonism tend to be holists about epistemic confirmation. What this means is that they do regard the truth of mathematical systems--even immaterial mathematical systems, to be a result of empirical scientific investigation. The indispensibility arguments attempt to show that mathematical objects exist by pointing out that they are posits of our best scientific theories and in accepting those theories we accept all of the consequences--includiing the existence of abstract objects.
The relevance this has to your claim is around the assumptions you are making about when the truth of a belief is relevant to its survival value. While you haven't explicitly spelled this out, it seems that you are using as a criterion whether the belief has any empirical implications. I assume this is because the elements of a proposition that doesn't have any empirical implications would not causally interact with our experience of the world and so would not have an effect one way or the other on our evolutionary success.
However, under an holistic model of empiricism, such as Quine proposed, this argument would fail. The elements of an empirically confirmed system, even if those elements are immaterial would be justified as a whole. Thus, even though the abstract objects of math would not themselves causally interact with human experience, the rest of our experience, which relies in part on assuming the existence of these abstract objects would constitute indirect empirical proof of their existence.
But this doesn't really answer the question of whether the cognitive processes that underlie our judgements about which theories have the best holistic empirical support are really truth-apt. Perhaps only the elements of these processes that apply directly to our experience are truth-apt and the rest are not.
Here are two responses: First, insofar as that is the case, the indispensability arguments would seem to then fail in proving mathematical platonism--which means we are back where we started. Second, here the cognitive process in question is not really some direct intuition or perception of the mathematical abstract objects, but rather some kind of inference or induction from our general understanding of a world to an ontology, and then an empirical testing of that overall understanding. But it is not clear to me that the inference to the existence of material objects like the electron, the heart, or even of predators back on the savannah is different in kind from the inference to the existence of an abstract object. Sure, some of these cases are much more complex or explicit than others, but it is in the same category of reasoning. Thus, I'm not sure that even if the subject matter of a proposition is an immaterial object that its truth is not open to empirical investigation and hence, presumably, to some connection to evolutionary advantage or disadvantage.
Anyway, that's long enough for now.
I take it we're moving beyond Plantinga's original argument, that claimed that a global skepticism resulted from naturalism plus evolution to the claim that with regards to specific domains of knowledge--beliefs about immaterial objects, with mathematical beliefs being the primary example--that the naturalist (materialist?) cannot justify the claim that their cognitive processes are truth-apt.
I'll start by acknowledging that I am not very comfortable with my position here. Mathematics has long been one of the most difficult cases of knowledge for hardcore empiricists like myself to explain, and I haven't really settled on a view that I find particularly satisfactory. So the reply I give to your challenge below is offered more as a way to advance the conversation than as describing my own views on the topic.
Anyway, here are a couple of places where I would attack your claim. First, you've referred to an "immaterial...cognitive process" and "immaterial truth claim." As I previously stated, I'm assuming a materialistic mental content (if we aren't, then we don't need to bother with this argument). Thus, your statement would be understood as a materialist mental content about an immaterial reality. In other words, you are assuming some version of mathematical Platonism. While some naturalists are mathematical Platonists, lots of them reject Platonism. Thus, insofar as your argument relies on this assumption, it can be challenged by these naturalists. My guess is that you'll still object, but you'll have to reframe your objection within a materialistic ontology.
Beyond that, I think my position has been laid out:
Originally Posted by me
Essentially, the materialist has no accounting for why these non-physical objects we call "numbers" should stand as a valid or useful representation of a physical universe. In particular, why does going into an "imaginary" world to do a bunch of a calculations reliably lead to "real" consequences (such as the existence of the Higgs boson -- which I am assuming is taken to be a real object by materialists and not merely a mathematical artifact). Something has to give somewhere in order for this to work. The materialist cannot account for why evolutionary pressures give rise to a framework of non-existent objects that manage to describe material reality in a reliable manner.
1) The materialist must somehow provide an account of numbers and mathematical theories as being material (those things that the platonist would deem "immaterial") while maintaining a reality-correspondence concept of truth (as a language consistency/coherence concept of truth does not get one to reality correspondence).
2) The materialist must also argue that evolutionary pressures can select cognitive processes that can reasonably be successful in discerning the truth value of mathematical claims that are far removed from simple arithmetic. We should grant that evolution does not pick the "right" answer immediately, but that it goes through multiple iterations ("trial and error") before it finds one that works. We have evolutionary pressures selecting processes that are valid for things like "1+1=2" (because these are the things that have evolutionary advantages), and we can start to see why these processes may pick out (eventually) processes that lead to the valid parsing of "1000+1000=2000." However, I think that there's a significant jump from arithmetic-type claims to claims involving things such as prime-ness, the real line, linear algebra, and whatever mathematical theories are used to determine the existence of things such as the Higgs boson. That's a huge tower built upon a small foundation, and it seems that some sort of argument is necessary to suggest the reliability of that foundation relative to the height of the tower. (See "reverse implications" below.)
Second, the naturalists that do accept platonism tend to be holists about epistemic confirmation. What this means is that they do regard the truth of mathematical systems--even immaterial mathematical systems, to be a result of empirical scientific investigation. The indispensibility arguments attempt to show that mathematical objects exist by pointing out that they are posits of our best scientific theories and in accepting those theories we accept all of the consequences--includiing the existence of abstract objects.
The relevance this has to your claim is around the assumptions you are making about when the truth of a belief is relevant to its survival value. While you haven't explicitly spelled this out, it seems that you are using as a criterion whether the belief has any empirical implications. I assume this is because the elements of a proposition that doesn't have any empirical implications would not causally interact with our experience of the world and so would not have an effect one way or the other on our evolutionary success.
The relevance this has to your claim is around the assumptions you are making about when the truth of a belief is relevant to its survival value. While you haven't explicitly spelled this out, it seems that you are using as a criterion whether the belief has any empirical implications. I assume this is because the elements of a proposition that doesn't have any empirical implications would not causally interact with our experience of the world and so would not have an effect one way or the other on our evolutionary success.
So the belief that "1+1=2" surely has empirical implications, but I don't think this implies that evolutionary pressures would drive all arithmetic beliefs similarly. We can expect evolutionary pressures to select for something like "1+1=2" but not "1000+1000=2000." While the latter has empirical implications, it does not appear to be an evolutionarily advantageous belief.
However, under an holistic model of empiricism, such as Quine proposed, this argument would fail. The elements of an empirically confirmed system, even if those elements are immaterial would be justified as a whole. Thus, even though the abstract objects of math would not themselves causally interact with human experience, the rest of our experience, which relies in part on assuming the existence of these abstract objects would constitute indirect empirical proof of their existence.
But this doesn't really answer the question of whether the cognitive processes that underlie our judgements about which theories have the best holistic empirical support are really truth-apt. Perhaps only the elements of these processes that apply directly to our experience are truth-apt and the rest are not.
Here are two responses: First, insofar as that is the case, the indispensability arguments would seem to then fail in proving mathematical platonism--which means we are back where we started.
But this doesn't really answer the question of whether the cognitive processes that underlie our judgements about which theories have the best holistic empirical support are really truth-apt. Perhaps only the elements of these processes that apply directly to our experience are truth-apt and the rest are not.
Here are two responses: First, insofar as that is the case, the indispensability arguments would seem to then fail in proving mathematical platonism--which means we are back where we started.
Second, here the cognitive process in question is not really some direct intuition or perception of the mathematical abstract objects, but rather some kind of inference or induction from our general understanding of a world to an ontology, and then an empirical testing of that overall understanding. But it is not clear to me that the inference to the existence of material objects like the electron, the heart, or even of predators back on the savannah is different in kind from the inference to the existence of an abstract object. Sure, some of these cases are much more complex or explicit than others, but it is in the same category of reasoning. Thus, I'm not sure that even if the subject matter of a proposition is an immaterial object that its truth is not open to empirical investigation and hence, presumably, to some connection to evolutionary advantage or disadvantage.
So i was reading a critique of plantinga (naturalism, evolution, and true belief by law, currently paywalled but presumably accessible to those with university access), that was useful in talking about the evolution of plantinga's argument.
Earlier iterations of the evolutionary argument against naturalism did not assume reductive materialism, only evolution and naturalism. Plantinga made the distinction where we might have various structures (presumably in brain) which can have neurophysical properties and semantic properties. It is easy to see how the physical properties affect behaviour, but the argument is that the semantic content (things like "truth" of a statement) can be swapped out willy nilly if the neurophysical properties remain the same (and hence the behaviour remaining the same).
There are several objections to this. But one such objection was to also assume reductive materialism. Because in this case, semantic properties ARE material in some way, and thus in the domain of things that can affect behaviour. As such, Plantinga had to come up with a new version of the argument where he accepts all three of naturalism, materialism, and evolution. So he accepts in this version that semantic properties like being true can affect behaviour, but is instead arguing that it is unlikely that evolution favours beliefs that are true. Which gets us to where we are in the thread, where I think everyone agrees that for certain domains of questions there IS a correspondence between the truth of beliefs and evolutionary advantageous, but there is a question as to whether this remains true in the domain of questions are removed from evolutionary pressures.
Anyways, I say this firstly because this historical development might not be known and might be interesting. But secondly, it underscores the point that the question of the argument is an epistemological one that assumes materialism, and if one has ontological questions regarding materialism by itself that might be interesting but isn't our subject of discussion; indeed, materialism far from being a weakness of the argument is assumed in an attempt to bolster the argument.
Earlier iterations of the evolutionary argument against naturalism did not assume reductive materialism, only evolution and naturalism. Plantinga made the distinction where we might have various structures (presumably in brain) which can have neurophysical properties and semantic properties. It is easy to see how the physical properties affect behaviour, but the argument is that the semantic content (things like "truth" of a statement) can be swapped out willy nilly if the neurophysical properties remain the same (and hence the behaviour remaining the same).
There are several objections to this. But one such objection was to also assume reductive materialism. Because in this case, semantic properties ARE material in some way, and thus in the domain of things that can affect behaviour. As such, Plantinga had to come up with a new version of the argument where he accepts all three of naturalism, materialism, and evolution. So he accepts in this version that semantic properties like being true can affect behaviour, but is instead arguing that it is unlikely that evolution favours beliefs that are true. Which gets us to where we are in the thread, where I think everyone agrees that for certain domains of questions there IS a correspondence between the truth of beliefs and evolutionary advantageous, but there is a question as to whether this remains true in the domain of questions are removed from evolutionary pressures.
Anyways, I say this firstly because this historical development might not be known and might be interesting. But secondly, it underscores the point that the question of the argument is an epistemological one that assumes materialism, and if one has ontological questions regarding materialism by itself that might be interesting but isn't our subject of discussion; indeed, materialism far from being a weakness of the argument is assumed in an attempt to bolster the argument.
Yeah, it is. Thanks.
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