No More Learning

If Kitt- ler's passage from the 1970S to the 1980s, with his progressive grounding of discourse in the materialities of communication, is analogous to the switch from the symbol-based discourse network of 1 800 to the technol-
ogy-based discourse network of 1900, then his passage from the 1980s to the 1990S approximates the switch from the electric discourse network of 1900 to an electronic "systems network 2000," with its reintegration of formerly           media technologies and communication channels by the computer, the medium to end all media.