Wednesday, 6 August 2014

An Aspect of Susan Haak’s Foundherentism



It could be said that if a foundationalist believes that “basic beliefs are about observable physical objects” (e.g., “there’s a dog”), then he's not in fact a genuine foundationalist at all. If he believes that a dog is in fact a dog, then he has already brought beliefs to bear on the dog-experience to start with.

How does he know that it is in fact a dog? Because of his prior beliefs about dogs. Perhaps he tacitly uses the conditional: If an object or animal barks and has four legs and a tail, then that object must be a dog.


“There’s a dog” can't be a foundational belief in any sense of that term. The only thing he could say is that it is a belief caused by actual interactions with dogs, whereas some of his other dog-thoughts aren't caused by causal interaction with concrete dogs. In that case, perhaps we could say that the causal interaction with a dog is foundational; though not the belief itself. In that case, as Susan Haak says, it is


“only propositions, not events [or objects], that can stand in logical relations to other propositions [or beliefs]”. (227)


The causal interaction itself is neither a belief nor a proposition. Therefore it can't “stand in logical relations to other propositions” or beliefs. The causal interaction with the dog might have been (as it were) a first cause of the belief or beliefs about the dog; though in and of itself, it is neither evidence for such beliefs nor a justification for further beliefs.


In any case, the same causal context - taken only in itself - can cause different beliefs in different people and possibly different beliefs in the same person at different times. The interpretations of our causal contacts depend on our prior beliefs and the prior concepts which we apply to our causal interactions or contacts. And even if a particular causal contact brings about the formulation of new beliefs or new concepts, these will still be dependent upon or related to prior beliefs and prior concepts. Such things do not spring up ex nihilo and neither are they “first beginnings” or “first causes” (as it were).


Even the adverbial versions of foundationalism smuggle in prior concepts and beliefs.


For example, “I am appeared to brownly” still uses the concept [brown]. And even the concept [appears] implies that the speaker is making a distinction between appearance and reality. In addition, even if that statement isn't object-involving, it's still property-involving. And where there are properties, there are also objects to which the properties can be predicated. Unless the subject thought that brown itself, or brownness itself, qua trope, appeared to him “brownly”. That isn't likely.


If the speaker can identify the property- concept [brown], then why can’t he also identify an object-concept, say, [dog]? He might not have done so that this particular time, of course; though there was nothing to stop him doing so. And if something “looks like a dog”, it still looks like a dog even if it isn't an actual dog. The prior concept [dog] is still (surreptitiously or tacitly) used by the adverbial foundationalist.


Problems With Naturalised Epistemology: Reasons & Causes



Causal conditions in and of themselves can't give us justifications for a belief. They can, however, determine the nature of belief. As far as justification is concerned, we need to make the causal conditions justify our beliefs. That is, we need to say why or how such particular causal conditions have contributed to our true or false beliefs. 

As Donald Davidson said, "causation is not itself under an aspect". It doesn't explain or justify anything. It only does so in conjunction with the epistemic practices of epistemologists who make sense of causal conditions and who also offer us the reasons why particular causal conditions - rather than others - determine the truth of our beliefs rather than their falsehood.

Reliabilists and externalists say that causal mechanisms in the brain hook up with stimuli that produce belief. Though do they hook up with stimuli that cause true belief? What makes the stimulations, casual mechanisms or whatever else cause true belief? Indeed do we even know how they cause any kind of belief - true or false?

The brain scientist can see what’s going on in the brain; though he can’t see the relation between the brain and the mind that makes sense of what goes on in the brain and what the brain gives it. Causes are precisely that - causes. And reasons are reasons. Reasons are in the domain of mind and causes are in the domain of the brain and world. Of course reasons themselves may be dependent on causes; though this wouldn't mean that reasons are nothing over and above causes.

The brain scientist can never see why we believe that Tony Blair is a politician. He can't even see the belief that P. Tony Blair being a politician or not lying is outside the brain. However, the mind - though not the brain - can both register Tony Blair being a politician or not being a politician and make sense of whether he is or is not a politician.

The brain scientist can tell us what subserves such beliefs (or even what causal mechanisms lead to this belief). However, he can't tell us why or how we come to believe that Tony Blair is a politician. Indeed we would need to tell him what the belief is and where it came from in order for him to tell us which causal mechanisms and brain states subserve such beliefs and reasoning processes. Without such prior knowledge, the brain scientist would simply be mucking about in the brain not quite knowing what it is he's trying to find or explain.

Of course causal conditions in and of themselves can't tell us everything we need to know about knowledge and knowledge-acquisition. How can they? Such conditions need to be explained and interpreted. Not only that: they need to be questioned and criticised. These causal conditions don’t just enforce themselves on the mind of the investigator. And they certainly shouldn’t enforce themselves on the minds of epistemologists. If they did, then there would be no such thing as epistemology. And there would be no such thing as empirical investigation either.

To give a simple example.

Which causal conditions are we talking about? There is an indefinite number. And if we choose certain causal conditions, the epistemologist can then ask:


i) Why have you chosen to concentrate on these and not the many others?

ii) Why is this causal condition relevant and the one you ignored irrelevant?

iii) How do you know that these causal conditions give us knowledge and the many others don’t?

iv) How do you know that you're looking at them in the right way?

Epistemology is different to science or empirical investigation. However, does even the most naturalistic epistemologist think otherwise? The naturalist simply says that we must rely on - or even defer to - empirical investigation or simply use such findings. How could it be any other way? If this weren’t the case, then epistemology would not really have a subject matter to clarify and elaborate upon. The pure Cartesian epistemologist may survive without science. Though what sort of survival would it be? It's a kind of survival that's individualistic or subjectivist. That it, the Cartesian epistemologist relies on himself and himself alone, at least in principle. So what’s to stop him making massive mistakes and barking on many false trees? 

It's the Wittgenstein argument: if there’s no one available to tell him that he has gone wrong, then how does he no that he has gone right? The world is bigger than his own mind, no matter how great and systematic his mind is. 


The Causal Relations Between Mind & World




In the Cartesian tradition, the mind’s autonomy was of paramount importance. All we need to do, essentially, is get our internal workings functioning and in good order. It doesn’t really matter about the external world. Or, more correctly, it doesn’t matter until we had got our mental ship in order.


In epistemological externalism (as well as in reliabilism), on the contrary, what happens before the formation of a belief (or before cognitive operations as a whole) is what matters. The question is simple: 

How did I acquire this particular belief? 

So it's the required causal relation with the external world that determines whether or not a belief (or cognitive process) is justified. If it's acceptably justified, then we may have knowledge. We may not even be able to elaborate on the external causal processes that led to the formation of a belief. Though if we're in the right situation (vis-à-vis the world), then such processes which we may not be aware of will themselves somehow justify our beliefs.

Of course it's the case that we require causal relations with the external world when it comes to our perceptual knowledge. That is, in a purely empiricist manner, all we really need are reliable causal contacts with the world. Though, as Kant might have said: 

There's much more to knowledge than mere causal interaction with the world. 

Our minds and brains need to do something with all the incoming data – they need to synthesise it. That is the case even with basic perceptual beliefs.

Can we rely on perceptual information alone to make general statements about the world? That is, no single experience (or even a large group of experiences) alone will tell me that, say, that all swans are white.

And do we ever have a basic perceptual experience of someone not murdering someone else?

What about microscopic properties, objects or processes which are always beyond perceptual experience? What does pure experience tell us about these things?

What about numbers? They're supposed to be non-spatiotemporal abstract entities. How could I ever have perceptual experience of - or causal interaction with - numbers?

So not all beliefs and bits of knowledge are simply a question of reliable causal contacts with the concrete things that the beliefs and bits of knowledge are about. The traditional empiricist had no convincing answers to these epistemic problems. There are things about the mind-brain that work free of causal interactions. Or if there are causal processes in the mind-brain, then they're of such a kind that we don’t even know that they're happening. In that case, they have no epistemic relevance.

The internal world must have at least a little autonomy from the external world. Though perhaps we don’t necessarily need to think of it at all as the internal world. The mind-brain is indeed a part of the world. It is naturalistically acceptable. However, the mind-brain does things that other parts of the world don't do. It thinks about the world. It has representations and images of that world. It has intentionality – that is, directedness. It deals with meanings, concepts, truth, falsity and the rest.

Although the mind is part of the world, it's a special and unique part of it. 

We causally interact with the world, and that in turn sets of causal processes in the mind-brain: it doesn’t follow that there'll be some kind of isomorphic and infinitely repeatable set of mind-brain relations to that world. The same causal processes bring about different beliefs in different people - or even the same person at different times. Something goes on in mind-brains that can't be accounted for in the same way that things that go in the world can be accounted for. This is not a mystical conclusion. It may simply be a fact about the mind-brain’s astonishing complexity and subtlety. Indeed it has been said that the mind-brain is the most complex thing in the entire universe.


Monday, 4 August 2014

Putnam on Semantic Holism




Hilary Putnam (in this work) isn't talking about what words mean when taken separately from what he calls ‘interpretation’. He isn't even talking about the inferential or otherwise connections of words and their meanings to one another when taken separately from interpretation.

If Putnam is talking about interpretation, he's talking about how individual hearers - or even the sum of hearers or understanders - interpret the meanings of the words or sentences which they hear or read. On this account, then, a word doesn't have a meaning in glorious separation from all acts of interpretation or understanding; which is perhaps the position of Frege and so many other philosophers (perhaps Dummett too). Our interpretation of a word or a sentence will change "when we see more text" (229). Perhaps we couldn't even interpret a word or sentence unless we saw more text or heard more of what the speaker has to say. How could we interpret at all without something to help us with our interpretation? That something else, in Putnam’s words, would be ‘more text’. (It's interesting to see Putnam using Jacques Derrida's term ‘text’ rather than ‘utterance’, ‘word’ or ‘sentence’.)

Not only is the context of the text of importance when it comes to interpretation: we couldn't know what a word means unless we see that word used again and again in other contexts. Perhaps not only by the same speaker or in the same text; but also when used by other speakers and in other texts. After all, if the context of the word is the text in which it is embedded, then perhaps that text also has its context in a sum of other texts (some by the same author and some by other authors). Even if we gain access to the word or sentence’s meaning by hearing more of what the speaker says (or more of what is written in the text in which it is embedded), that greater knowledge will still be ‘finite’ and will thus it won't "infallibly show us what the word means" (229). There's also the possibility (or the likelihood) that the word will have been used "in some additional way that you haven’t taken account of" (229). In fact this is bound to be the case simply because our minds are finite in nature.

However, it's indeed strange that Putnam appears to be suggesting that one is required to know of every usage of a word before one can fully or accurately know that word’s meaning. Surely that can’t be right. Or, instead, we may well know its meaning; though that meaning is neither static nor determinate in that our acquiring new knowledge of other interpretations or usages of the word will have an effect on how we understand it. We don't need to know about every usage or utterance of a word in order to understand what it means. However, when we do acquire such additional knowledge, this will have an effect on how we understand the word. This, again, means that the word’s meaning is neither static in nature nor determinate. This doesn't stop us from using the word accurately or easily; nor does it stop us from understanding its meaning. It only stops us from believing that its meaning is static and determinate. Perhaps we simply don't require a word’s meaning to be static or determinate in order to communicate with ourselves and with others.

Think here of Wittgenstein’s ‘family resemblance’ argument in which he argues that different usages of the word ‘game’ don't all have an essence (as it were). Instead, each game has a family resemblance with each other game without that family resemblance needing to be grounded in an essence of games which must be shared by all games. There's no necessary and sufficient set of conditions that all games must share in order to be games or to be called a ‘game’. However, they may well share something with other games; though not with all other games. Similarly, all the uses of the word ‘game’ (or ‘liberty’ or ‘truth’ for that matter) must share something with at least some other usages of that name. Though it needn't share a determinate or static meaning with all these other usages. As long as it shares something with them - no matter how small.

This is why languages aren't static or determinate; unless they're artificial or Fregean languages! Much of what has just been said also implies that what matters is what we do with words and sentences (how we use them) – not necessarily (or only) what they mean. If that is indeed the case, then we can hardly expect a word to have the same meaning in all contexts or when used at different times and for different purposes.

This is the basic Wittgensteinian insight into words (or their meanings) and it takes us away from the Fregean position in which the sense behind words (or the Thoughts or propositions behind sentences) are both determinate and static. Perhaps only the meanings (if there are meanings at all) of the logical constants and other (logical) primitives are genuinely determinate or static. Though even here we can only define the logical constants in terms of what we can do with them (in the ‘implicit definitions’) and not in terms of their abstract meanings.

Putnam gives his own examples of this lack of determinacy or stasis when it comes to meanings. He says:

"… in American usage an armchair is a chair, but it’s not a chaise in French, it’s a fauteuil and it’s not a Stuhl in German, it’s a Sessel."

Perhaps this is more a question of linguistics or even lexicography than it is a question of semantics. However, Putnam began his career as a linguist so perhaps this connection isn't simply fortuitous. Perhaps the ‘meaning is use’ thesis entails a parallel commitment to the findings of linguistics or even to what the lexicographers say! Putnam himself says:

"One of my three majors in college was in linguistic analysis, it was the first department in the world. … it was a section of the anthropology department…" (229)
Here we don't only have a semantic holism that must incorporate linguistics: perhaps anthropology must be taken into account as well. That is, if we take our holism so far, perhaps we should take it even further into anthropology (as Wittgenstein is said to have done). And then perhaps into culture and history as a whole, as Rorty, Derrida and others have done. We can say, as the enemies of holism often do, that once we commit ourselves to holism (of whatever kind), then one's holism can't help but spread its wings farther and farther until, perhaps, we reach something like the Absolute of the 19th century Idealists. Well, that’s a thought at least.

More specifically, Putnam says that if one studies linguistics and/or anthropology, then "meaning holism is just forced on you" (229). In order to interpret language or words (or utterances) within a language, whether alien or our own, then one must interpret holistically or one can't interpret at all.

What's all this holism opposed to? According to Putnam:

"There are some accounts of meaning such as Fodor’s, according to which each word has one meaning which is fixed by its causal connection with a 'property', but that has nothing to do with the way words behave in a real language." (229)
Perhaps this is because Fodor is a Fregean at heart. Perhaps he too is committed to atomism simply because he believes, like Frege and Dummett, that atomism is the only way we can secure determinacy, the stasis of meaning, as well as its objectivity. That was, after all, precisely what Frege wanted from his semantics and thus from his ‘ideal’ (though artificial) language.

Though, as many philosophers have often said, this Fregean project essentially failed in its objectives; at least as far as the natural languages are concerned. Perhaps it didn't fail when it came to certain artificial languages (as Tarski would have acknowledged). But as Strawson and others have said, such artificial languages are woefully inadequate when it comes to the systematising of natural languages and also when it comes to everything that can be said or done within natural languages. What we are left with is a "mere skeleton of a language" and not a formalisation (or otherwise) of the language/s we use everyday of our lives.

Again, perhaps both Dummett and Fodor have simply not accepted the lessons given to us by the late Wittgenstein when he stressed the ‘meaning is use’ thesis, language-games and the anthropological realities of the natural languages. Indeed Dummett, for one, has often stressed his antipathy towards the late Wittgenstein; especially when it came to the ‘sceptical’ results of the latter’s theories about meaning.

Popper on Causal-Logical Necessity





 
It's often said that causal connections aren't logically necessary – not even necessary causal connections. This is the central gist of Hume’s position and from which he derived so many of his arguments about causation as a whole. Popper, on the other, did think that causal connections are logically necessary... but not so quick! They're only logically necessary


‘in the sense that they follow deductively once we assert the appropriate natural law’. (11)

If we don't assert the appropriate natural law, or any natural law, then we can't say that they are logically necessary. This is a classic case of the principle that no matter if a logical axiom or premise is true (that is, even if it is false), what follows from it will still follow deductively and validly from it (providing one’s inferences are valid).

Did Popper only mean ‘logically necessary’ in this amended sense? Could he have used the words ‘logically necessary’ in any other way? That is, any logical necessity that causal connections have are simply inherited from the natural laws from which they are derived or deductively inferred. We can't expect anything more about causal logical necessity than this.

Now we can express an example of a scientific law that is expressed in causal terms:

An event of type C has occurred. But whenever an event of type C occurs, an event of type E later occurs.

Again, this will only happen of necessity if we also assert the appropriate natural law relating cause C to effect E. Without that natural law (or its assertion/assumption), an event of type C could be followed by an event of type F, or by anything for that matter!

However, the Humean can still express his problems with Popper’s position. Dale Jacquette writes:

"A defender of Hume on the contingency of causal connections might nevertheless object that although the inference is deductively valid, and to that extent carries necessity from assumptions to conclusion, the conclusion itself is not necessary unless the assumptions are also logically necessary, and that no scientific laws correlating causes to effects are logically necessary." (11)

This means that it doesn't matter if the move from the assumptions to the conclusion is deductively valid if the assumptions themselves aren't logically necessary (they may not even be true to bring about deductively validity). After all, causal matters are about the world. They have nothing to do with deductively validity or deductive inference.

A Humean would argue that although the inference from the assumptions to the conclusion is logically necessary (in that if the assumptions are taken to be true this truth is passed on to the conclusion), the assumptions themselves aren't logically necessary.

Does this mean that the passage from event type C to event type E isn't logically necessary? Or that event type C, taken by itself, isn't logically necessary?

If event type C isn't logically necessary, then how can it pass on logical necessity to event type E?

So now we can say that not even the move from event type C to event type E is logically necessary if event type C isn't itself logically necessary.

Again, we aren't talking about formal or subject-less deductively validity or inference here, but an aspect of the world – causation!

To put the conclusion at its most basic. Hume argued that no scientific laws correlating causes to effects are logically necessary. That is the gist of Hume’s argument. Not that there is no such thing as causation or causal connection. Not even that there are no such things as causal regularities. Of course there are! No. His point is simple. There are no scientific laws correlating causes to effects. A scientific law is required to be both universal and exceptionless. On Hume’s empiricist grounds, we have no way of observing the universal or truly knowing that something is indeed exceptionless. It follows that no causal relation - say between event type C and event type E - can be deemed to be universal and exceptionless. Thus it can't instantiate or fall under a genuine natural scientific law. That is Hume’s point against scientific and rationalist views of necessary causal relations.

Jacquette puts much of the above in the following way:

"Again, it might be questioned whether the logical necessity obtaining between the assumptions and conclusion of a valid inference about real world events necessarily qualifies or attaches to the events themselves… " (11)

What we have here are two things:

i) The logical necessity obtaining between the assumptions and conclusion of a valid inference about real world events.


and

ii) The logical necessity obtaining between events in the real world or between event type C and event type E.

Clearly they aren't the same thing.

We can even say that i) is analogous to a de dicto modality, whereas ii) is analogous to a de re modality. One kind of necessity is about the form of an inference from assumptions to a conclusion. The other kind of necessity is said to obtain between events in the actual world. There is a world of difference between the two. The latter would be metaphysical or ontological necessity, whereas the former would be strict logical necessity. It appears, then, that Popper attempted to fuse logical necessity with metaphysical necessity.