apeiron
Gold Member
- 2,138
- 2
bohm2 said:This is a critical (sarcastic?) piece from Chomsky talking about Deacon's earlier book:
This seems more like Chomsky being unable to think of a good argument against the biosemiotic perspective and so resorting to the rhetorical trick of "I don't even understand."
It is one way to preserve your belief system, but pretty pathetic.
There is of course nothing particularly difficult to follow in Deacon. Some of his papers might be worth a read.
For example, this is a clever paper on the origins of life - life getting started as the most primordial interaction between self-assembling molecular construction and constraint. As an alternative to the usual RNA world story it is pretty good.
http://anthropology.berkeley.edu/sites/default/files/BioTheory2006_Deacon.pdf
Then there is this one that perhaps should bring home how the Chomskyian perspective is quite shockingly defective in regard to the whole information theoretic revolution in science.
Langauge is supposed to be all about communication, right? The meaning of messages? Shannon/Weaver got to the heart of this with the reciprocal notions of information and entropy. The basic semiotic story of the interaction of two worlds - the computational and the (thermo)dynamic - was established right there. Yet Chomsky lives off in his own little world out of contact with the central thrust of science.
Sketching the general premise of semiotics/epistemic cut thinking, Deacon notes...
Consider the concept of “patriotism.” Despite the fact that there is no specific physical object or process that constitutes the content of this word, and nothing intrinsic to the sound of the word or its production by a brain that involves more than a tiny amount of energy, its use can contribute to the release of vast amounts of energy unleashed to destroy life and demolish buildings (as in warfare). This is evidence that we are both woefully ignorant of a fundamental causal principle in the universe and in desperate need of such a theory.
http://anthropology.berkeley.edu/sites/default/files/WhatIsMissingFromInfo.pdf
Clearly, the story is about the interaction of the internal and the external, to use Chomsky's jargon. And both are "real" (they have to be for there to be a causal interaction rather than the disjoint dualism and frank panpsychic mysticism which you get from following Chomsky's route to its natural conclusions).
Deacon makes the useful point that information gains its supra-causal power by being able to represent what does not in fact exist. It can talk about the not-A (when the material world can only be the A). You can see how this immediately knocks the props out from under supervenient notions of emergence popular with reductionists. The absence of things is precisely what cannot emerge via bottom-up constructive causes. Only top-down constraints can limit reality so that some things are definitely not there.
Ultimately, the concept of information has been a victim of a philosophical impasse that has a long and contentious history: the problem of specifying the ontological status of the representations or contents of our thoughts. The problem that lingers behind definitions of information boils down to a simple question: How can the content (aka meaning, reference, significant aboutness) of a sign or thought have any causal efficacy in the world if it is by definition not intrinsic to whatever physical object or process represents it?
In other words, there is a paradox implicit in representational relationships. The content of a sign or signal is not an intrinsic property of whatever physically constitutes it. Rather, exactly the opposite is the case. The property of something that warrants calling something information, in the usual sense, is that it is something that the sign or signal conveying it is not. I will refer to this as “the absent content problem .” Classic conundrums about the nature of thought and meaning all trace their origin to this simple and obvious fact.
Deacon here makes the argument that information theory is about the semiotic interaction between two realms and Chomskyian-like claims that physical information can be intrinsically meaningful, absent of their interpretive contexts, is a corruption of the foundational work.
The danger of being inexplicit about this bracketing of interpretive context is that one can treat the sign as though it is intrinsically signifi cant, irrespective of anything else, and thus end up reducing intentionality to mere physics, or else imagine that physical distinctions are intrinsically informational rather than informational only post hoc, that is, when interpreted.
Deacon rounds off that paper by making a claim particularly relevant to the OP...
Like so many other “hard problems” in philosophy, I believe that this one, too, appears to have been a function of asking the wrong sort of questions. Talking about cognition in terms of the mind –brain – implying a metaphysically primitive identity – or talking about mind as the software of the brain – implying that mental content can be reduced to syntactic relationships embodied in and mapped to neural mechanics – both miss the point.
The content that constitutes mind is not in the brain, nor is it embodied in neuronal processes in bodies interacting with the outside world. It is, in a precisely definable sense, that which determines which variations of neural signaling processes are not occurring, and that which will in a round-about and indirect way help reinforce and perpetuate the patterns of neural activity that are occurring. Informational content distinguishes semiosis from mere physical difference. And it has its influence on worldly events by virtue of the quite precise way that it is not present.
Attempts to attribute a quasi-substantial quality to information or to reduce it to some specific physical property are not only doomed to incompleteness, they ultimately ignore its most fundamental distinctive characteristic.
So this is another way of talking about the significance of global constraints - the role of not-A in shaping the material world. It is the kind of sophisticated systems thinking we just don't get from a Chomsky (or a Nagel when it comes to that).
A third paper Chomsky could be reading and understanding is http://anthropology.berkeley.edu/sites/default/files/Deacon_PNAS2010.pdf
Langauge is both a social and biological phenomenon. The capacity to acquire and use it is a unique and distinctive trait that evolved in only one species on earth. Its complexity and organization are like nothing else in biology, and yet it is also unlike any intentionally designed social convention. Short of appealing to divine intervention or miraculous accident, we must look to some variant of natural selection to explain it. By paying attention to the way Darwin’s concept of natural selection can be generalized to other systems, and how variants on this process operate at different interdependent levels of organism function, explaining the complexity of language and the language adaptation can be made more tractable.
Deacon is funny on Darwin's own adaptationalist dilemma...
In a letter he wrote to Asa Gray shortly after the publication of On the Origin of Species (2), he admits that “the sight of a feather in a peacock’s tail, whenever I gaze at it, makes me feel sick!”
But we know how that turned out...the early version of the singing ape hypothesis of language evolution (has Chomsky ever offered good arguments against it? Or again, is it too complicated for his understanding
In his book The Descent of Man and Selection in Relation to Sex (11)— which is typically referred to by only the first half of its title—Darwin argues that language and other human traits that appear exaggerated beyond survival value can be explained as consequences of sexual selection. So, for example, he imagines that language might have evolved from something akin to bird song, used as a means to attract mates, and that the ability to produce highly elaborate vocal behaviors was progressively exaggerated by a kind of arms-race competition for the most complex vocal display.
Deacon sure understands Chomsky though...
The appeal to pure accident, e.g., a “hopeful monster” mutation, to explain the evolution of such a highly complex and distinctive trait is the biological equivalent of invoking a miracle.
And it is difficult to see what is so hard to understand about the Baldwin effect and niche construction theory...
...“niche construction” theory (28) argues that, analogous to the evolution of beaver aquatic adaptations in response to a beaver generated aquatic niche, a constellation of learning biases and changes of vocal control evolved in response to the atypical demands of this distinctive mode of communication. To the extent that this mode of communication became important for successful integration into human social groups and a critical prerequisite for successful reproduction, it would bring about selection favoring any traits that favored better acquisition and social transmission of this form of communication.
Unlike Baldwinian arguments for the genetic assimilation of grammatical and syntactic features of language, however, the niche construction approach does not assume that acquired language regularities themselves ever become innate. Rather it implicates selection that favors any constellation of attentional, mnemonic, and sensorimotor biases that collectively aid acquisition,
use, and transmission of language.
Although this could conceivably consist of innate language-specific knowledge, Deacon (23, 27)
argues that this is less likely than more general cognitive biases that facilitate reliable maintenance of this extrinsic niche.
As Deacon argues, a modern neurodevelopmental approach to the brain finds no problem with the idea of social information structuring the brain's functional architecture - the critical period of language learning is after all one of the most striking findings in the field.
And we can see by Chomsky's failure to engage at this level of hypothesis that he really just is past his sell by date. He does not have the basic grounding where it is required now.
Although slight tweaks of this species-general brain architecture likely play important roles in producing the structural and functional differences of different species’ brains, a significant contribution also comes from selection-like processes that incorporate both intra- and extraorganismic information into the fine-tuning of neural circuitry.
Likewise, it is indefensible that Chomsky keeps trying to handwave away the fact of memetic or cultural evolution. How can it not be the case?
But language evolution includes one additional twist that may in fact mitigate some fraction of what biological evolutionary mechanisms must explain.Langauge itself exhibits an evolutionary dynamic that proceeds irrespective of human biological evolution. Moreover, it occurs at a rate that is probably many orders of magnitude faster than biological evolution and is subject to selective influences that are probably quite alien from any that affect human brains or bodies.
Darwin recognized this analogical process, although he did not comment on its implications for human brain evolution. “A struggle for life is constantly going on amongst the words and grammatical forms in each language. The better, the shorter, the easier forms are constantly gaining the upper hand, and they owe their success to their own inherent virtue” (ref. 11, p. 91).
Chomsky fusses about computational optimality. Darwin had already talked about how natural selection would achieve it.
As Deacon remarks (and it is a quite critical point of evolutionary logic)...
So as brains have adapted to the special demands of language processing over hundreds of thousands of years, languages have been adapting to the limitations of those brains at the same time, and a hundred times faster.
And then the balanced conclusion from someone who understands what he is talking about...
Langauge is too complex and systematic, and our capacity to acquire it is too facile, to be adequately explained by cultural use and general learning alone. But the process of evolution is too convoluted and adventitious to have produced this complex phenomenon by lucky mutation or the genetic internalization of language behavior.
Chomsky talks in simplicities and mysteries. The field of language evolution has already moved on to much more sophisticated modelling.
Last edited: