Is Gilles Deleuze’s concept of virtuality sufficiently close to the concept of virtuality used in informatics and the philosophy of information for computer-created objects and virtual reality to justify the latter’s explanation by means of the former? This question is the main objective of the present paper. We aim to show that, contrary to its most widespread interpretations, the Deleuzian conception of virtuality is epistemological and not ontological, and that this invalidates the belief that Deleuze’s virtuality and that of computer (...) science are sufficiently close to justify the transposition of one to the other. (shrink)