The greatest survival advantage of humans may be specialized division of labour, which coordination of course seems to require language. Chomsky, being so argu

The greatest survival advantage of humans may be specialized division of labour, which coordination of course seems to require language. Chomsky, being so argumentative that he's even antichomskian, has this idea that the primary purpose of language is not communication, but internal "linkage between interfaces", or thought (whatever that means). Feral children of course are isolated from exchange; but their isolation also prevents acquisition of language. While it takes a community to spontaneously invent language (https://wikipedia.org/wiki/Nicaraguan_Sign_Language https://wikipedia.org/wiki/Nicaraguan_Sign_Language), the primary benefit may yet be individual thought. > how much of the functioning of the brain can only be understood in the context of social groups and connectivity between individuals. Could be absence of language.