Justin Leiber

(1938 - 2016)

As is well known, Alan Turing drew a line, embodied in the "Turing test," between intellectual and physical abilities, and hence between cognitive and natural sciences. Less familiarly, he proposed that one way to produce a "passer" would be to educate a "child machine," equating the experimenter's improvements in the initial structure of the child machine with genetic mutations, while supposing that the experimenter might achieve improvements more expeditiously than natural selection. On the other hand, in his foundational "On the chemical basis of morphogenesis," Turing insisted that biological explanation clearly confine itself to purely physical and chemical means, eschewing vitalist and teleological talk entirely and hewing to D'Arcy Thompson's line that "evolutionary 'explanations,'" are historical and narrative in character, employing the same intentional and teleological vocabulary we use in doing human history, and hence, while perhaps on occasion of heuristic value, are not part of biology as a natural science. To apply Turing's program to recent issues, the attempt to give foundations to the social and cognitive sciences in the "real science" of evolutionary biology (as opposed to Turing's biology) is neither to give foundations, nor to achieve the unification of the social/cognitive sciences and the natural sciences.

           “I’ve written a story!†My eighty year old father’s rich, booming voice fired up the phone line, briefly burning through the fuzzy enunciation that stemmed from a minor stroke of three years back. It hadn’t been the stroke but rather his growing blindness that had slowed his production. Through dictation he’d still kept up his short monthly magazine column (in one of the last and most gravely scatological of these he’d inadvertently shamed my Enlightenment scholarship by writing “I thought everyone knew that Frederick the Great and Voltaire corresponded about their bowel movementsâ€). He sounded happier and more alive than I’d heard him in years, though the sketch he’d written, from a cat’s viewpoint, is spectrally peopled under aliases by his Shakespearian actor parents, and a spunky Lesbian witch who lightheartedly inducts my mother into her coven through ritualized sexual intercourse, which scandalizes my grandmother and titillates my father, who confesses along the way to alcoholism, habitual premature ejaculation, voyeurism, and unassuageable jealousy of his illustrious father, whose death in 1949 aroused only “a cold pride†(unlike the wrench I know he felt when his wife and his mother died in the late 1960s). The sketch resolves with his dead father’s body intoning Hamlet’s lines about what a piece of work is man, ending with “A paragon of animals,†which the feline observer coolly concludes must surely refer to cats.            That phone call was my last conversation with my father. A month before he had, quixotically, married a woman he’d known for two decades, on his part decidedly nonexclusively, a few days after she got a diagnosis of inoperable lung cancer. Now, in deference to her fear of flying, they took off on a tiring train and car trip from San Francisco to a convention in London, Ontario, where my exhausted father began his slide into incontinence, depression, and dementia..

Rachlin's is a dubious melange. Of Aristotle's four basic the scientists and philosophers of the modern era expelled the last, or teleology, from science. Adaptionist evolutionary biologists now sometimes sanction talk of the function or purpose of organisms' structures and behavioral repertoires as a first step because they believe evolution through natural selection makes natural organisms look asif they are purposively designed. But, as Aristotle himself insisted, humans are as much artificial as natural and so teleology is much less appropriate. To the degree that Rachlin's view makes sense it seems to amount to Daniel Dennett's intentional stance or the folk psychology talk of our everyday narrations of ourselves and others.

This is an excellent book for philosophers, and others concerned with natural language and cognition, who have not kept up with post-Aspects work in syntax, in particular with the Extended Standard Theory work on government and binding that relates to anaphora and quantification. It is a direct challenge to those who think that there must be a reasonably clearcut semantic level of description for sentences in natural language, one which is crucial for explaining how we learn, understand, and use natural language. Hornstein argues that the properties of quantification such as relative quantifier scope and pronoun binding in natural language are best explained in purely syntactic terms. "Not only are the explanations best construed syntactically but, more important, the distinctions and concepts needed to articulate them cut against the semantic distinctions one would naturally make". This syntactic theory will, of course, be supplemented in a full theory of language use by pragmatic theories that will assign meaning, force, reference, etc., in particular contexts, given all sorts of real world knowledge. But what we won't have will be a compositional, context insensitive level of semantic description in which true, denotation, object, model, etc., loom large. Though Hornstein is a philosopher, his arguments derive from a linguist's familiarity with recent syntactical work; however, the general line is consonant with Stich's From Folk Psychology to Cognitive Science: The Case Against Belief, in which Stich argues beliefs are so context and intrepretive-stance relative that they cannot be grist for a scientific psychology, which must rather limit itself to syntactical characterizations of sentences in cognition.

Nature's experiments in isolation—the wild boy of Aveyron, Genie, their name is hardly legion—are by their nature illusive. Helen Keller, blind and deaf from her 18th month and isolated from language until well into her sixth year, presents a unique case in that every stage in her development was carefully recorded and she herself, graduate of Radcliffe College and author of 14 books, gave several careful and insightful accounts of her linguistic development and her cognitive and sensory situation. Perhaps because she is masked, and enshrined, in William Gibson's mythic and false Miracle worker, cognitive scientists have yet to come to terms with this richly enlightening, albeit anecdotal, resource