They are talking about Paul Christiano who is now running the Alignment Research Center (ARC) and who just put a $5000 bounty on some semidefinite programming p

They are talking about Paul Christiano who is now running the Alignment Research Center (ARC) and who just put a $5000 bounty on some semidefinite programming puzzles. https://www.lesswrong.com/posts/pJrebDRBj9gfBE8qE/prizes-for-matrix-completion-problems https://www.lesswrong.com/posts/pJrebDRBj9gfBE8qE/prizes-for...