Jean Baudrillard (1929–2007),

In Simulacra and Simulation, introduced the concept that reality or the principle of the "Real" is short-circuited by the interchangeability of signs in an era whose communicative and semantic acts are dominated by electronic media and digital technologies. Baudrillard proposes the notion that, in such a state, where subjects are detached from the outcomes of events (political, literary, artistic, personal, or otherwise), events no longer hold any particular sway on the subject nor have any identifiable context; they therefore have the effect of producing widespread indifference, detachment, and passivity in industrialized populations. He claimed that a constant stream of appearances and references without any direct consequences to viewers or readers could eventually render the division between appearance and object indiscernible, resulting, ironically, in the "disappearance" of mankind in what is, in effect, a virtual or holographic state, composed only of appearances.

 

http://en.wikipedia.org/wiki/Postmodernism