In saying no one knew about the ideas implicit in the telegraph, I am not quite accurate. Thoreau knew. Or so one may surmise. It is alleged that upon being told that through the telegraph a man in Maine could instantly send a message to a man in Texas, Thoreau asked, "But what do they have to say to each other?" In asking this question, to which no serious interest was paid, Thoreau was directing attention to the psychological and social meaning of the telegraph, and in particular to its capacity to change the character of information -- from the personal and regional to the impersonal and global.
Neil Postman, The Disappearance of Childhood
communication, media, social-science, society, telegraph, television