Everyone's getting in to the FAQ business these days. That's a hard question. Postmodernism is a philosophy that is used to look at the world in a new way. The goal is to become aware of some unspoken assumptions in the way that everyone sees the world.
Postmodernism is similar.
It attempts to get you into a frame of mind that allows you to see our world in a different way. Riki Anne Wilchins has a funny definition of postmodernism. Well, that's also a hard question. In many people, we observe congruence amongst these categories. We observe, for example, that people with vaginas tend to have high levels of estrogen.