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- Xref: sparky sci.cognitive:726 sci.philosophy.tech:4204 sci.lang:8142
- Path: sparky!uunet!ogicse!das-news.harvard.edu!husc-news.harvard.edu!husc10.harvard.edu!zeleny
- From: zeleny@husc10.harvard.edu (Michael Zeleny)
- Newsgroups: sci.cognitive,sci.philosophy.tech,sci.lang
- Subject: Re: Theories of meaning not relying solely on sym
- Message-ID: <1992Nov20.224137.17653@husc3.harvard.edu>
- Date: 21 Nov 92 03:41:36 GMT
- Article-I.D.: husc3.1992Nov20.224137.17653
- References: <1992Nov16.000040.19912@midway.uchicago.edu> <1992Nov16.120727.17500@husc3.harvard.edu> <erwin.722217539@trwacs>
- Organization: The Phallogocentric Cabal
- Lines: 52
- Nntp-Posting-Host: husc10.harvard.edu
-
- In article <erwin.722217539@trwacs>
- erwin@trwacs.fp.trw.com (Harry Erwin) writes:
-
- >Unfortunately, the brain doesn't operate that way. Two statements are
- >considered equivalent if their processing generates the same activation in
- >the cerebral cortex (or a subset thereof). Since cortical activation is an
- >analog process, distributed over multiple layers, and reflecting nonlinear
- >dynamics at all scales, from the synaptic switching in the dendritic arbor
- >on up, defining equivalence becomes somewhat problematical.
-
- I discern several brazen counterfactual assumptions:
- (i) that mind states supervene on brain states;
- (ii) that understanding is a function of brain-state tokens;
- (iii) that physicalism allows a reduction of semantic primitives.
-
- That "two statements are considered equivalent if their processing
- generates the same activation in the cerebral cortex (or a subset
- thereof)" is a social fact about your discipline, that says absolutely
- nothing about the kind of equivalence involved. In fact, identity or
- similarity of activation patterns is a syntactic criterion by any
- reasonable definition of syntax; likewise for the frivolous attribution
- of synonymy as determined by similarity or identity of activations of
- the frontal cortex. Concerning your appeal elsewhere to the bizarre
- notion of semantic grounding, as I told you in email, my inability to
- conceive of any coherent theory thereof prevents me from imagining any
- way to demonstrate it in primitive mammals, in the same way I would
- believe you unable to demonstrate the holy nature of a self-professed
- Himalayan yogi via lab measurements.
-
- Physicalism depends on reducing semantics to physical primitives, or on
- eliminating it altogether. The former is logically impossible, as there
- is no way to partition the causal structure of the physical universe, so
- as to obtain the requisite "intentional stance". In other words, there
- is no coherent way to systematically differentiate the physicalist
- universe into subject and object, as required for the representational
- model which by definition underlies all extant conceptions of semantics.
- "Grounding" is just a special case of this situation. Reductionism is
- the sole viable physicalist alternative; at this time I have no interest
- in discussing its alleged merits. Until you learn how to address this
- point, instead of repeating _ad nauseam_ the same received ideas, I see
- absolutely no reason to continue this exchange. End of this discourse.
-
- >Cheers,
- >
- >--
- >Harry Erwin
- >Internet: erwin@trwacs.fp.trw.com
- >
-
- cordially,
- mikhail zeleny@husc.harvard.edu
- "Le cul des femmes est monotone comme l'esprit des hommes."
-