from Philosophy Now magazine:
Indeed, it is hard to give an overview of the major postmodernist tenets without seeming to fall into parody. All knowledge, scientific knowledge included, is held to be socially constructed through and through. Science is therefore merely one story among others. The world we know is one that is constructed by human discourses, giving us not so much truths as �truth-effects� which may or may not be pragmatically useful. From this point of view, epistemologically speaking, a scientific text is understood as being on a par with a literary text. Further, given that for Derrida language is a self-referential system, all communication is reduced to the model of an avant-garde poem in which all meaning is indefinitely deferred.
(chuckle)