Rationality like a martial art

In Rationality, From A to Z, Eliezer Yudkowsky often describes how rationality (more or less what I call Probabilistic Thinking) can be like a martial art. It is an interesting comparison, though I don’t know if I agree with all parts of it.

Some elements of his comparison

slightly mystical enlightenment that comes with expertise, an ability to move through the world fluidly and with your Unified theory of reason and thought.

rationality can be kind of like a religious or spiritual movement (without the irrational aspects, naturally)