It's true! This year for Petrov, LessWrong and the EA Forum have nukes pointed at each. Two forums, two buttons, and hopefully two sets of trustworthy users with launch codes.

Chapter 90, Roles, Pt 1. The Defense Professor speaks.

Link for the non-FB users: lesswrong.com/events/PwinnkX… Early dance floor testing:

LW + EA Anywhere are hosting an ultra NYE party in our GatherTown world. 16 hours, Europe + US. Convos, dancing, countdowns, games, predictions, reflection, deep philosophy chats. Visit the Great Library, Heaven, Hell, Ballroom, Moloch Maze, etc. Join us! fb.me/e/1ZvEdcfWk

@bettercount_us has written "A Voting Theory Primer for Rationalists" which is a breakdown of his understanding of social choice theory from his two decades of interest and work in the field.

@rohinmshah wrote the essay "Coherence Arguments Do Not Imply Goal-Directed Behavior" about what we can and cannot predict about advanced AGI systems from our understanding of basic VNM utility theory.

The first essay by @s_r_constantin in the LessWrong book-set is "Naming the Nameless", which explores aesthetics, design, political stances, and defensiveness. Her second essay "The Pavlov Strategy" is about a particular game-theoretic strategy.

@renormalized wrote the essay "The Loudest Alarm is Probably False" in the new LessWrong book set, about noticing when the social alarms going off in your head aren't calibrated.

@KatjaGrace asks "Why did everything take so long?" about technological progress in history. The next essay in the book, "Why everything might have taken so long" offers dozens of hypotheses she collected from the comments at LessWrong, Marginal Revolution, and Meteuphoric.

@vkrakovna writes about specification gaming in AI. She made (along with contributions from @gwern, @catherineols and more) a list of over 60 examples of this problem, and discusses their implications.