Showing posts with label syntax. Show all posts
Showing posts with label syntax. Show all posts

Wednesday, September 4, 2024

Language does not "convey thoughts"

I am reprinting here a recent Substack article of mine in which I try to articulate in a very concise way some ideas and intuitions I have been developing about language and communication.

Some months ago I mentioned that, after having spent some time in countries where proficiency in English is not widespread, it was a relief to be in a country which presented no linguistic challenges for me. My focus in England has been on acclimatizing myself to English ways. To say “reacclimatizing” would probably be misleading, given how long it is since I’ve been here and how much things have changed in the intervening decades. I may write about shifts in the social and political mood and changes in the wider culture at a later date but, for now at least, I want to steer clear of politics and related matters.

Lately I’ve been reviewing my views on language, thought and communication, and what follows is a brief statement of my general perspective on the relation between language and thought and the implications of such a view for human communication. Even when there is no “language barrier” in the usual sense of that phrase, effective communication is far from guaranteed. In fact a shared language will often contribute to creating an illusion of agreement, obscuring profound differences in point of view.

In a footnote to one of his essays, Aldous Huxley (obviously recalling a personal experience) talked about an unbridgeable gulf suddenly opening up between two men engaged in a friendly fireside chat on account of a stray remark. A felt or imagined affinity proved to be entirely illusory.

My point is that language, by its very nature as a cultural phenomenon, tends to create illusions of affinity. Its nature is not so much to reveal as to conceal or paper over the very real differences in how speakers see the world.

Language, of course, is a powerful tool for doing what it does best. It facilitates thought and interaction and so makes other aspects of human culture possible. But it doesn’t operate in the way we naively think it does or deliver exactly what it seems to deliver. What linguistic communication doesn’t do is convey thoughts in a literal or even (I suggest) in a metaphorical sense — though we often fool ourselves into thinking that it does.

Let me explain. I have a thought or feeling. I try to put it into words. If it is a thought which draws not only on my commonsense or technical or scientific knowledge of the world but also on my personal memories, values or judgements then it is private to me: it cannot be encapsulated in a string of words and so cannot be conveyed into someone else’s brain. The words, the sentences are in some sense conveyed, sure, but the crucial point is that the same words and phrases trigger different thoughts and feelings in different brains.

The basic building blocks of a language are phonemes (minimal, meaning-distinguishing sounds). Every language has its own set of phonemes from which words and phrases and sentences are built. In any given language the abstract forms of words (lexemes or word stems) constitute a dynamic lexicon which is involved in complex combinatorial processes involving the formation of actual words and sentences (processes studied under the rubrics of morphology and syntax).

At least a rough distinction can be made between language-specific brain areas and non-language-specific brain areas. Phonological and morphosyntactic processes operate largely unconsciously in specific areas of the brain and are relatively self-contained. At a certain level of abstraction, these processes can be explicitly described and modelled (i.e. formalized). But semantic processing spreads a much wider net in terms of the brain areas involved and is not formalizable. It draws not only on language-specific brain areas but also on non-language-specific areas, including those dealing with emotions, memories of lived experience, general reasoning and problem-solving, etc.. This point has been dramatically illustrated in fMRI studies.

The key point here is that semantic processing — unlike phonological and morphosyntactic processing — draws on general aspects of thought, including memories and patterns of emotional response which are necessarily unique to the individual. The complex phonological and morphosyntactic processes which give human language its remarkable power are, in an essential sense, shared. These processes only arise and sustain themselves over time within a shared social and cultural milieu. They represent something that speakers of a given language have in common. The semantic aspect of language also involves shared understandings of course, but the sharing involved here is of a much more limited nature.

Take a simple noun like “dog”. It has a publicly-agreed primary meaning or denotation and various other (also publicly-agreed) senses. But even when used in its primary sense to refer to a particular kind of animal, the thoughts and feelings and memories triggered in my mind by this word will (because of our different personal histories) be very different from the thoughts and feelings and memories which the word triggers in your mind. And if this is so with such a mundane word as “dog”, how much more divergent will thoughts triggered by more value-laden or abstract expressions be?

Such differences relate to (but cannot be completely reduced to) the concept of connotation. Connotations are, like denotations, usually publicly shared (at least to some extent) but, being tied to emotion and personal memories, they are necessarily more vague and difficult to define. Certain words are universally accepted as having a negative connotation (like the noun “lackey”, for example, or the adjective “sanctimonious”) but in many cases the connotation is not obvious or easy to describe and different speakers may report diametrically opposed attitudes.

Though the brain processes underlying linguistic processing remain obscure, the basic elements and patterns of a language — apart from the intricacies of semantics — can be discovered and written down. Linguists have been doing this sort of thing for hundreds of years. In principle at least, anyone with access to a dictionary and a grammar can attain technical proficiency in a new language. All of this suggests that the core mechanisms of language are neither deep nor private in any meaningful sense.

Our personal thoughts, by contrast, remain essentially private, however much we attempt to put them into words or express them in other ways. Literary and other artistic creations are notoriously subject to multiple, divergent interpretations. Gestures can be subtle and expressive but are limited in scope and range.

In some ways, the idea that our personal thoughts remain forever private is confronting. But there is also comfort to be found here, especially in an age awash with spin and propaganda and dominated by social media. For there is, after all, a sacrosanct space where judgements are made or withheld, and where integrity and truth still matter and cannot be threatened.

In fact, the idea I am trying to convey here (an idea, note, not a thought!) can be extremely valuable in helping to minimize frustration and stress.

And lowering our expectations concerning what language can reasonably be expected to do will also (somewhat paradoxically perhaps) make us better communicators.

Saturday, May 19, 2012

Possible worlds and possible worlds

I have trouble seeing philosophy as an intellectual discipline. The gist of my thinking is that 'philosophy' is a word which has changed its meaning quite dramatically over the centuries as various sciences have split off from it and I'm not sure that it has much meaning left.

If one has a theological view of the world, philosophy's position will not be threatened as it can resume (or continue) its traditional role as a secular complement to theological discourse. But if one denies that there are truths we can intuit or know by non-empirical, non-deductive means, then, arguably, there is no place for a non-scientific intellectual discipline (unless it be seen as an art form or as a kind of game).

Of course, the study of formal deductive systems, logical or mathematical, is non-empirical, but it is continuous with science.

All that is left of philosophy for someone who rejects claims to substantive intuitive knowledge of a religious or moral kind are reflections on the various intellectual disciplines (physical, social and historical sciences, mathematics, logic, etc.). Such meta-thinking is best carried out (I would presume) by the practitioners of the various intellectual disciplines rather than by outsiders (whether or not they are designated as 'philosophers').

I do recognize, however, that much pure and applied work in certain disciplines (logic, mathematics, psychology and linguistics come to mind) draws strongly on philosophical traditions of thought, and raises issues which previously have been addressed by philosophers. An example of such work is the attempt (drawing on theoretical work in logic and mathematics as well as linguistics) to model the processes of natural language.

Computational linguistics clearly has great practical and commercial importance at the moment, but it can also be seen as a project the relative success [or failure!] of which has implications for the way we see human language – and ourselves.

My reading of the current state of play is that the formal approaches which followed in the wake of Chomsky's early attempts to give an explicit analysis of the syntax of ordinary language have not delivered as expected, just as early work in the field of artificial intelligence produced very disappointing results. Both of these research projects underestimated the importance of contextual factors and real world knowledge which is inevitably a part of intelligent human functioning and communication. Formal systems need in some way to be integrated into this real world context, but, even if they are, it is still possible that many important aspects of language and communication will remain out of reach. I am thinking in particular of aspects of language use which depend on social awareness, a sense of the sorts of things that people with autism spectrum disorders have trouble dealing with, including subtleties of tone and style.

There is a huge body of theoretical work in the syntax and semantics of natural language which shows, if nothing else, that there are countless ways of conceptualizing and formalizing (at least aspects of) natural language. In the light of this profusion, the key question – it seems to me – is not which theoretical approaches are true (whatever that might mean) but which are useful.*

We may want to postulate possible worlds and use set theory to model the semantics of natural language, including complex noun phrases and verb tenses and auxiliaries. But sets and 'possible worlds' are only one way (albeit a possibly enlightening one) of representing the way, for example, words like 'must' or 'could' or 'should' work. No claim need be made that such possible worlds exist. They are merely useful fictions.

Physicists, of course, also talk about other possible worlds, parallel universes and so on, but they are making ontological claims. Their concern is primarily with how the world (or the multiverse) is rather than with formal systems, though they use formal systems to model the operations of nature (as linguists may use formal systems to model the operations of natural language).

But the possible worlds of logicians and linguists are – notwithstanding some outlandish claims by certain logicians – merely formal constructs, to be judged entirely by their usefulness. The other worlds of the physicist may well prove in fact to be 'out there' – to exist in the normal sense of the word, though they may be inaccessible to us.

I am aware that the question of what existence consists in is a traditional philosophical one, but is it a serious or potentially productive question? I think not. Most of the confusions can be resolved simply by accepting that we use words like 'exist' in various ways.

The one area which does seem to raise important issues is mathematics. Just as there are possible worlds and possible worlds (the 'worlds' of the logician and the worlds of the physicist), so there are formal systems and formal systems, and, as we move from, say, the first-order predicate calculus to formal systems which can encompass arithmetic we cross a kind of threshold. Mathematics needs to be clearly distinguished from logic. But this is a topic for another time.



* This is not to say that the exercise of trying to create formal representations of natural languages may not reveal interesting things about natural language and provide new, more concise, more explanatory ways of understanding aspects of the grammar of those languages than traditional grammars provided. But, although such rarefied goals are not pointless, nor are they the sorts of goals for which society is likely to provide support. Traditional grammarians were, after all, essentially pedagogues and their grammars were pedagogical aids.