It made me think of epistemic luck in the rat-sphere in general, him inventing then immediately fumbling 'gettier attack' is just such a perfect example, but there are other examples in there such as Yud saying:

Personally, I’m used to operating without the cognitive support of a civilization in controversial domains, and have some confidence in my own ability to independently invent everything important that would be on the other side of the filter and check it myself before speaking. So you know, from having read this, that I checked all the speakable and unspeakable arguments I had thought of, and concluded that this speakable argument would be good on net to publish[…]

Which @200fifty points out:

Zack is actually correct that this is a pretty wild thing to say… “Rest assured that I considered all possible counterarguments against my position which I was able to generate with my mega super brain. No, I haven’t actually looked at the arguments against my position, but I’m confident in my ability to think of everything that people who disagree with me would say.” It so happens that Yudkowsky is on the ‘right side’ politically in this particular case, but man, this is real sloppy for someone who claims to be on the side of capital-T truth.