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1.Smoking Lesion Steelman II
post by Abram Demski 661 days ago | Tom Everitt and Scott Garrabrant like this | 1 comment

After Johannes Treutlein’s comment on Smoking Lesion Steelman, and a number of other considerations, I had almost entirely given up on CDT. However, there were still nagging questions about whether the kind of self-ignorance needed in Smoking Lesion Steelman could arise naturally, how it should be dealt with if so, and what role counterfactuals ought to play in decision theory if CDT-like behavior is incorrect. Today I sat down to collect all the arguments which have been rolling around in my head on this and related issues, and arrived at a place much closer to CDT than I expected.

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2.Stable Pointers to Value: An Agent Embedded in Its Own Utility Function
discussion post by Abram Demski 705 days ago | Tom Everitt, Scott Garrabrant and Vladimir Slepnev like this | discuss
3.Smoking Lesion Steelman
post by Abram Demski 751 days ago | Tom Everitt, Sam Eisenstat, Vanessa Kosoy, Paul Christiano and Scott Garrabrant like this | 10 comments

It seems plausible to me that any example I’ve seen so far which seems to require causal/counterfactual reasoning is more properly solved by taking the right updateless perspective, and taking the action or policy which achieves maximum expected utility from that perspective. If this were the right view, then the aim would be to construct something like updateless EDT.

I give a variant of the smoking lesion problem which overcomes an objection to the classic smoking lesion, and which is solved correctly by CDT, but which is not solved by updateless EDT.

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