Modernism so focussed on reason that it is not very good at explaining how we learn things. Postmodernism provides a good critique of modernism Postmodernism helpfully stresses the use of the aesthetic. Contrary to postmodern claims, practical experience shows that accurate communication is possible. Even postmodern authors expect to be understood. As we work with a text, we can come to an increased understanding, even if not a perfect knowledge.
Postmodernism frequently offers an indefensible foundational thesis.
It does not allow for us to get closer to the true meaning of something over time. Postmodernism, like modernism, is characterised by astounding arrogance. If postmodernism destroyed the arrogance of modernism, it now says that if there is a God, we could not know it. Modernism and postmodernism both fall short in that they ignore the implications of God and his revelation. We can't truly deal with epistemology without recognising the effects of sin and the illuminating, convicting and converting power of the Holy Spirit.