Jean Baudrillard (1929-2007) was a French philosopher best known for his contributions to postmodernism. Wikipedia says,
"Simulacra and Simulation is a 1981 philosophical treatise by the philosopher and cultural theorist Jean Baudrillard, in which the author seeks to examine the relationships between reality, symbols and society, in particular the significations and symbolism of culture and media involved in constructing an understanding of shared existence." (Wikipedia: Simulacra and Simulations, 12.23.22 UTC 15:06)
The rest of this post is some quotes from Baudrillard.
Hyperreality
"I observe, I accept, I assume the immense process of the destruction of appearances (and the seduction of appearances) in the service of meaning (representation, history, criticism, etc.) that is the fundamental fact of the 19th century." (Simulacra and Simulation, 1981)
"...we are in a logic of simulation, which no longer has anything to do with a logic of facts and an order of reason. Simulation is characterized by a precession of the model, of all the models based on the merest fact..." (Simulacra and Simulation, 1981)