 However these debates evolve, two things seem clear. First, the external, anti-individualistic, mind-independent properties of language, including overt linguistic behavior, are apt for proper scientific investigation. Exactly how much of a threat this is to Chomsky’s view is a matter for debate, since as we saw (in  3.1.2)  he insists he is not denying that language is at least partly a social product; but the claims made on the back of these results certainly seem to run contrary to the thrust of his internalism. And, second, against Chomsky’s skepticism, there are good reasons to develop such research into external influences, as it may prove to be central for a proper understanding of the semantics, and even the grammar and syntax, of human language and its acquisition.