Postmodernism emerged in the late 20th century as a departure from modernism. It is characterized by skepticism of culture and history and a rejection of the idea that any media or text has greater value than another. Postmodernism reflects society's feelings of alienation and uncertainty about identity. Theorists argue that economic and technological changes, like television and the internet, have led to a "three minute culture" and a society dominated by images and spectacle. Postmodern art is hybrid and samples different styles and levels of culture to blur hierarchies of taste.