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homunq comments on A critique of effective altruism - LessWrong
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No argument here. It's hard to build a good social welfare function in theory (ie, even if you can assume away information limitations), and harder in practice (with people actively manipulating it). My point was that it is a mistake to think that Arrow showed it was impossible.
(Also: I appreciate the "thank you", but it would feel more sincere if it came with an upvote.)
I had upvoted you. Also, I used Arrow as a shorthand for that class of theorem, since they all show that a class of group decision problem is unsolvable - mostly because I can never remember how to spell Satterthewaite.