Postmodernism is a complex cultural phenomenon which is characterised,
among other things, by its distrust of totalising discourses, of reas
on and of universal truth. It propounds indeterminacy, the primacy of
difference and the incommensurability between discourses, which are su
pposed to have their own regimes of truth. This is why postmodernism i
s suspicious about the critical concept of ideology, because according
to its tenets it is impossible to pass judgement on a discourse from
the perspective of another discourse. Hence the critical concept of id
eology must be abandoned. However, an examination of Foucault's, Baudr
illard's and Lyotard's work shows that they unwittingly end up re-intr
oducing the concept through the back door thus contradicting themselve
s. While they doubt the validity of total discourses and of their ideo
logical critique, they must assume the validity of their own critique
of total discourses.