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Steven Pinker -- How the Mind Works - Hampshire High Italian ...

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Standard Equipment 31linked by a telecommunications network, or a computer program can befragmented into different parts of <strong>the</strong> disk or memory, <strong>the</strong> circuitryunderlying a psychological module might be distributed across <strong>the</strong> brainin a spatially haphazard manner. And mental modules need not be tightlysealed off from one ano<strong>the</strong>r, communicating only through a few narrowpipelines. (That is a specialized sense of "module" that many cognitivescientists have debated, following a definition by Jerry Fodor.) Modulesare defined by <strong>the</strong> special things <strong>the</strong>y do with <strong>the</strong> information availableto <strong>the</strong>m, not necessarily by <strong>the</strong> kinds of information <strong>the</strong>y have available.So <strong>the</strong> metaphor of <strong>the</strong> mental module is a bit clumsy; a better one isNoam Chomsky's "mental organ." An organ of <strong>the</strong> body is a specializedstructure tailored to carry out a particular function. But our organs donot come in a bag like chicken giblets; <strong>the</strong>y are integrated into a complexwhole. The body is composed of systems divided into organs assembledfrom tissues built out of cells. Some kinds of tissues, like <strong>the</strong> epi<strong>the</strong>lium,are used, with modifications, in many organs. Some organs, like <strong>the</strong>blood and <strong>the</strong> skin, interact with <strong>the</strong> rest of <strong>the</strong> body across a widespread,convoluted interface, and cannot be encircled by a dotted line.Sometimes it is unclear where one organ leaves off and ano<strong>the</strong>r begins,or how big a chunk of <strong>the</strong> body we want to call an organ. (Is <strong>the</strong> hand anorgan? <strong>the</strong> finger? a bone in <strong>the</strong> finger?) These are all pedantic questionsof terminology, and anatomists and physiologists have not wasted <strong>the</strong>irtime on <strong>the</strong>m. What is clear is that <strong>the</strong> body is not made of Spam but hasa heterogeneous structure of many specialized parts. All this is likely tobe true of <strong>the</strong> mind. Whe<strong>the</strong>r or not we establish exact boundaries for<strong>the</strong> components of <strong>the</strong> mind, it is clear that it is not made of mentalSpam but has a heterogeneous structure of many specialized parts.Our physical organs owe <strong>the</strong>ir complex design to <strong>the</strong> information in <strong>the</strong>human genome, and so, I believe, do our mental organs. We do not learnto have a pancreas, and we do not learn to have a visual system, languageacquisition, common sense, or feelings of love, friendship, and fairness.No single discovery proves <strong>the</strong> claim (just as no single discovery provesthat <strong>the</strong> pancreas is innately structured), but many lines of evidence convergeon it. The one that most impresses me is <strong>the</strong> Robot Challenge.Each of <strong>the</strong> major engineering problems solved by <strong>the</strong> mind is unsolvable

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