**** Idiolect is a subset of community variable features
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Linguistic production in any well-defined community is variable and any one speaker may produce only some variants of each variable. The individual's capacity for production is a partial subset of the set of features that define the speech community as a whole. Well-formed boundaries of a community are rarely discernable from data derived from clusters of speakers alone. Labov is fully aware of this difficulty, having correctly predicted it as a severe limitation in the work of Taboret-Keller and LePage on Belizean Creole.
-- The relationship of the individual to the community
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Creole speech community in Hymes 1971, check xeroxes, also check Pride and Holmes sociolinguistics reader