> With the telegraph Western man began a process of putting his nerves outside his body. Previous technologies had been extensions of physical organs: the wheel is a putting-outside-ourselves of the feet; the city wall is a collective outering of the skin. But electronic media are, instead, extensions of the central nervous system, an inclusive and simultaneous field. Since the telegraph we have extended the brains and nerves of man around the globe. As a result, the electronic age endures a total uneasiness, as of a man wearing his skull inside and his brain outside. We have become peculiarly vulnerable. The year of the establishment of the commercial telegraph in America, 1844, was also the year Kierkegaard published "The Concept of Dread."
> [...] When new technologies impose themselves on societies long habituated to older technologies, anxieties of all kinds result. Our electronic world now calls for a unified field of global awareness; the kind of private consciousness appropriate to literate man can be viewed as an unbearable kink in the collective consciousness demanded by electronic information movement.
http://projects.chass.utoronto.ca/mcluhan-studies/v1_iss2/1_...
The sensual intimacy of what Snowden revealed is hard to convey to people who don't live on the internet. They don't understand the violation and the anxiety. Even John Oliver can't change that.