rwallace comments on Ingredients of Timeless Decision Theory - Less Wrong
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This is the point at which I say "Wrong" and "Read the literature". I'm not sure how I can explain this any more clearly than I have already, barring a full-fledged sequence. At 7pm the CDT agent calculates that if it modifies its source to use the old algorithm in cases where Omega saw the code before 7pm, it will get an extra thousand dollars on Newcomb's Problem, since it will take box A which contains an additional thousand dollars, and since its decision to modify its code at 7pm has no effect on an Omega who saw the code before 7pm, hence no effect on whether box B is full. It does not reason "but Omega knows I will change my code". If it reasoned that way it would be TDT, not CDT, and would one-box to begin with.
I still disagree, but I agree that we have hit the limits of discussion in this comment thread; fundamentally this needs to be analyzed in a more precise language than English. We can revisit it if either of us ever gets to actually programming anything like this.