We may say then that the contribution of the telegraph to public discourse was to dignify irrelevance and amplify impotence. But this was not all: Telegraphy also made public discourse essentially incoherent. It brought into being a world of broken time and broken attention, to use Lewis Mumford's phrase. The principle strength of the telegraph was its capacity to move information, not collect it, explain it or analyze it. In this respect, telegraphy was the exact opposite of typography.
Neil Postman, Amusing Ourselves to Death: Public Discourse in the Age of Show Business
communication, public-discourse, telegraphy, typography