Reply re: Chomsky IIA theoretical linguist wouldn't "mostly associate him nowadays with leftist polemics". A lay person unconnected with his work, would.A theoretical linguist would indeed class his or her work as scientific, particularly if it is the type which draws on ideas of rationalist biology, innateness and genetics, and if its goal is to present a theory for language acquisition. The fact that many linguistics departments are housed in arts and humanities faculties is irrelevant. This happens because the subject "linguistics" is very diverse. There are many "art" oriented areas of linguistics (e.g. historical linguistics, sociolinguistics, stylistics, etc). But equally, there are hard scientific versions of the discipline, as exemplified by the Minimalist Programme based at MIT, and the Advanced Syntax and generative phonology research carried out at myriad universities including UCL, Stanford, Yale, and so on. Chomsky's work certainly falls into the latter because it is not concerned in the slightest with "social" issues of language study, but firmly with biological issues of language development in humans. Chomskian linguistics is not about learning how to speak French. It's about the neural processes involved in speaking our native languages. Indeed, if one studies subjects such as generative grammar, syntax and Principles and Parameters Theory (PPT), one immediately realises that this work is far more relevant to a mathematics department than an arts one. Why? Well not by some fairytale default or because we linguists wish to be important, but because Chomsky's syntactic theories make heavy use of mathematic principles such as recursive function theory. With respect, your opinion is quasi-informed, and it's not an expert one.