Post-modern philosophy believes the primitive idea that there is no objective reality. This makes post-modern philisophy as useless as medicine would be if medicine were to abandon science and accept the ancient view that all sickness is caused by an imbalance of bodily humours and can be cured with leeches. The post-modernists champion ancient errors while pretending to be avant-garde.
"The post-modernists champion ancient errors while pretending to be avant-garde."
Well WT, I agree with your statement to a point. Certianly the aura of avant-garde is very important to the post-modernists, and is most like their greatest motivating force.
However, it's not "ancient errors" that they are championing; the most foolish ancient had ten times the common sense of the most enlightened post-modern. The errors that being celebrated are quite modern, co-inciding with Einstien's theory of relativity, which is their gospel.
What is so interesting about Ayn Rand and her philosophy, is that she comes across as an the anti-philosopher--at least as far as post-modernists are concerned. I think she would find good company amongst most of the ancients, with the possible exception of Plato, who she hated.