Eliezer Yudkowsky, I enjoyed your blog post very much.
You wrote, "It was once said that every science begins as philosophy, but then grows up and leaves the philosophical womb, so that at any given time, 'Philosophy' is what we haven't turned into science yet." Who originally said that? I'm not sure I agree, but it's an interesting view of philosophy.
Anyway, I especially like when you say that philosophers would benefit from learning as much of the science related to their field of interest. The science, experience and information is that with which the philosophers philosophize. So they can philosophize even more usefully if they have more knowledge of relevant science.