In semiotics and postmodern philosophy, the term hyperreality characterizes the inability of consciousness to distinguish reality from fantasy, especially in technologically advanced postmodern cultures. Hyperreality is a means to characterise the way consciousness defines what is actually "real" in a world where a multitude of media can radically shape and filter the original event or experience being depicted. Some famous theorists of hyperreality include Jean Baudrillard, Albert Borgmann, Daniel Boorstin, and Umberto Eco