Eliezer Yudkowsky

"I have sometimes thought that all professional lectures on rationality should be delivered while wearing a clown suit, to prevent the audience from confusing seriousness with solemnity."

"This is crunch time for the whole human species, and not just for us but for the intergalactic civilization whose existence depends on us. This is the hour before the final exam and we're trying to ge…"

"Many boys and girls are heroes in their dreams," Dumbledore said quietly. He did not look at any of the other girls, only at her. "Fewer in the waking world. Many have stood their ground and faced the…"

"People go funny in the head when talking about politics. The evolutionary reasons for this are so obvious as to be worth belaboring: In the ancestral environment, politics was a matter of life and dea…"

"Ever since I adopted the rule of "That which can be destroyed by the truth should be," I've also come to realize "That which the truth nourishes should thrive." When something good happens, I am happy…"

"If you want to build a recursively self-improving AI, have it go through a billion sequential self-modifications, become vastly smarter than you, and not die, you've got to work to a pretty precise st…"

"But ignorance exists in the map, not in the territory. If I am ignorant about a phenomenon, that is a fact about my own state of mind, not a fact about the phenomenon itself. A phenomenon can seem mys…"

"If you've been cryocrastinating, putting off signing up for cryonics "until later", don't think that you've "gotten away with it so far". Many worlds, remember? There are branched versions of you that…"