What Morel has invented is a system permitting the recording, storage, and repeated reproduction of selected sequences of real-life behavior. We could perhaps call it the ultimate multimedium. Multimedia is not a precise term, but we will take it to stand for a storage medium in which different sign systems are conveyed in their most adequate substance. In this sense, a book which contains printed text, phonetic transcriptions of speech, musical scores and pictures would not be called a multimedium. Similarly, the score and the music as played are two substances for the same work, but, under normal circumstances, the music as played is at least esthetically more adequate.
Some media allow for an easier concretization than others.
The picture on the wall can be concretized at any moment, and books allow for a more immediate and intermittent concretization than computer discs, i.e. reading single lines and pages, skimming though it, etc. In principle, the behavior sequences recorded by Morel are as little accessible to concretization as the information stored on computer discs, but this is not readily apparent, since the projectors are stored away in a cellar, and since the reproduced sequences repeat automatically over and over again. Where angels fear to touch Interactivity has something to do with permeability, which may involve different sense modalities and occur in one or several directions. Media may often be characterized in terms of the type and direction of permeability which they allow. The window connects the inside of the house with the outside, not the other way round.