Comment on Anthropic Decision Theory IV: Solving Selfish and Average-Utilitarian Sleeping Beauty

Fri, 04 Nov 2011 15:30:34 GMT

In the selfish case, you forgot the 0.5: the payoff is 455 for "always yea", 350 for "always nay".

And you seem to be comparing selfish with selfless, not with average utilitarian.

For an average utilitarian, under "always yea", 100 is given out once in the heads world, and 1000 is given out 9 times in the tails world. These must be shared among 10 people, so the average is 0.5(100+1000x9)/10=455. For "always nay", 700 is give out once in the heads world, and 9 times in the tails world, giving 0.5(700 + 9x700)/10=350, same as for the selfish agent.

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