Post-structuralism

So, what do you do if you flunked philosophy and science? If you have a political/ideological bent, and perhaps a flair for glib phrases, you invent "post-structuralism", a substitute for hard knowledge which excuses its ignorance with claims that "no one really understands anything anyway, because they just can't, that's why."

If you find the work of Derrida, Foucault, et. al., too difficult to endure because of its imprecision, you might take refuge in the work of Wittgenstein. Some of the post-modern students of the former have done precisely that, managing in the process to avoid the dreaded methodologies of metaphysics.

Where would we all be today if scientists of the last 500 years had done the same?