Theoretical questions concerning language and communication figure prominently throughout the work of the Czech-British social philosopher and anthropologist Ernest Gellner. The article traces the development of Gellner’s linguistic thought from his early, controversial engagements with Ordinary Language Philosophy to his responses to Chomsky’s work in linguistics and his late-career assessments of Wittgenstein and particularly Malinowski whose – subsequently repudiated – view of the fundamental difference between the alleged “primitive” and “scientific” functions of language turns out to play a central explanatory (...) role in Gellner’s renowned theory of nationalism. The key to understanding Gellner’s thinking on language is to grasp both his adherence to a “telementational” model of communication and his scientism. This leads him to embrace the view that modern national cultures are predicated upon an industrial-scientific mode of cognition which both requires and entails a radically distinctive metaphysics of communication, namely one which allows for the conveyance of culture-transcending, “context-free” conceptual content. This, I claim, is a serious error which stems in large part from a misdiagnosis of the cognitive and communicative consequences of literacy and in particular a failure to correctly apprehend what linguist Roy Harris has termed the “autoglottic space” engendered by the availability of writing. (shrink)