Stability is maintained through 'grand narratives' or 'master narratives', stories a culture tells itself about its practices and beliefs in order to keep going.
A grand narrative in American culture might be the story that democracy is the most enlightened or rational form of government, and that democracy will lead to universal human happiness.
Postmodernism is characterized by 'incredulity toward metanarratives' that serve to mask the contradictions and instabilities inherent in any social organization.
Postmodernism prefers 'mini-narratives' of local events.
'simulacra' of postmodern life which have taken the place of 'real' objects.
Postmodernism marks a culture composed 'of disparate fragmentary experience and images that constantly bombard the individual music, video, tv, ad, and other form of e-media.
The speed and ease of reproduction of these images mean that they exist only as image, devoid of depth, coherence or originality.