Go read this, now.

Brian Weatherson has posted a brain-boggling problem for strategic theory, that he calls “a cross between the Newcomb puzzle and the centipede game.”

I don’t have any thoughts on the solution for the poor causal decision theorist yet… will comment in more detail soon… I suspect my thoughts are going to hinge on questions about the demon’s knowledge and its stability in various counterfactual circumstances, but, well… thinking…


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