Harun Farocki, Phantom Images, in: Public, Number 29: Localities, Ed. by Saara Liinamaa, Janine Marchessault and Christian Shaw, Toronto 2004, p. 12-24

A computer can process pictures, but it needs no pictures to verify or falsify what it reads in the images it processes. Fot the computer, the image in the computer is enough. Nevertheless, the “objective language” pictures are distinct by degrees from the “meta-linguistic" pictures, much as the aesthetics of the machine are distinct from commodity aesthetic. And the axe of Roland Barthes's lumberjack is not simply a manifestation of goal-related rationality: even a tool communicates not only with the materials of its trade, but also with the human senses. (Harun Farocki)