| | Proto-World and the Language Organ |
 | | One argument for the language organ, for instance, is the poverty of stimulus argument-- that the language available to children is too little in quantity and too suspect in quality to serve to construct a grammar. |
 | | But many immigrants don’t really have to learn the national language-- the required level of national language competence in their work is often minimal, and they may live in an enclave (a family or a neighborhood) where it is not needed at all. |
 | | Humans may well be adapted to language; the case is strongest, perhaps, for the alteration of the vocal tract: the choking hazard would surely be maladaptive if not outweighed by the greater good of producing a wide range of possible speech sounds. |
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