Sublime

So rationality is about forming true beliefs and making winning decisions.

Epistemic rationality: systematically improving the accuracy of your beliefs.

To argue against an idea honestly, you should argue against the best arguments of the strongest advocates. Arguing against weaker advocates proves nothing, because even the strongest idea will attract weak advocates. If you want to argue against transhumanism or the intelligence explosion, you have to directly challenge the arguments of Nick Bostro

Yudkowsky looks the part of the bearded, middle-aged computer nerd, and his vocabulary is shaped by years of arguing on the internet—his native tongue is Riverian, but his is a regional dialect thick with axioms and allusions and allegories. This particular one referred to a statement

Robin Hanson and I share a belief that two rationalists should not agree to disagree: they should not have common knowledge of epistemic disagreement unless something is very wrong.

Epistemic rationality: systematically improving the accuracy of your beliefs.

(most famously, the Oxford philosopher Nick Bostrom