For thousands of years communication has functioned principally by means of linguistic and iconic messages. In the first case linguistic symbols serve as intermediaries; in the second, images or, more broadly, representations. In order to be transmitted, linguistic and/or iconic symbols need to be re-produced, re-presented, vocally, through writing, painting, sculpture or any other means of re-production. But re-production requires a space that, through use of an appropriate material, serves as its medium; forms to occupy it; rules to control it, (...) and a certain stability. In other words representation is impossible without a certain fixity of the message that alone can ensure its duration, whether short or long being unimportant, but which it needs precisely in order to function as a message. (shrink)