This essay intends to explore the ontological consequences of Vilém Flusser’s philosophy of language that he introduced in his first works, written in Portuguese and published in Brazil. This paper will critically examine its main topics: his definition of speech as an act and language as an expanding human presence in the cosmos; linguistic performance as the most dignifying human characteristic and the identification of reality with language; and finally, the thesis that language creates, shapes and disseminates reality. Starting out (...) from an instrumental definition of language, Flusser is compelled to define the world as secondary in relation to language. This paper tries to examine the underlying tensions or paradoxes of such a position as part of Flusser’s dramatic rhetoric strategy, exploring the dangers of an extremely idealistic position sustaining the project of a linguistic ontology. (shrink)