"I will formulate ... a general thesis about modernist fiction: the dominant of modernist fiction is epistemological. That is, modernist fiction deploys strategies which engage and foreground questions such as ... "How can I interpret this world of which I am a part? And what am I in it?" Other typical modernist questions might be added: What is there to be known?; Who knows it?; How do they know it, and with what degree of certainty?; How is knowledge transmitted from one knower to another, and with what degree of reliability?; How does the object of knowledge change as it passes from knower to knower?; What are the limits of knowledge? And so on."
-- Brian McHale, Postmodernist Fiction (info)