Yudkowsky is a polarizing writer. Some people love his writing; I do not. There's the occasional nugget of wisdom but I find his style so irritating and pretentious that it's not worth suffering through.
Scott Alexander (Slatestarcodex) is related and more readable if verbose, but less focused on that groundwork material of (so-called) rationality.
Thanks, I just read in his blog the post "beware the man of one study". Discussing if rising minimum wage hurts the economy give rise to 270 comments. I agree with the conclusion: Even if someone give you overwhelming evidence in favor of a certain point of view just wait and see if the opposite side has equally overwhelming evidence. My example: This coin came 7000 times heads so almost always gives head. Just wait and count how many times it came tails.
Scott Alexander (Slatestarcodex) is related and more readable if verbose, but less focused on that groundwork material of (so-called) rationality.