Starting from a point of the unknown?

"When the beginning is what one doesn't know, and the end and what comes in between are woven out of what isn't known, what contrivance is there for ever turning such an agreement into knowledge?" (Socrates in Plato's The Republic, 533c)

Think of post-modernism's a priori denial of absolute truth, and thus beginning contemplation with "their feet planted firmly in mid-air."