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cousin_it comments on Why do theists, undergrads, and Less Wrongers favor one-boxing on Newcomb? - Less Wrong
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No, the version we've been discussing for the last several years involves an argumentless Universe function that contains the argumentless Agent function as a part. Agent knows the source code of Agent (via quining) and the source code of Universe, but does not apriori know which part of the Universe is the Agent. The code of Universe might be mixed up so it's hard to pick out copies of Agent. Then Agent tries to prove logical statements of the form "if Agent returns a certain value, then Universe returns a certain value". As you can see, that automatically takes into account the logical correlates of Agent as well.
I find it rather disappointing that the UDT people and the TDT people have seemingly not been communicating very efficiently with each other in the last few years...
I think what has happened is that most of the LW people working on decision theory in the past few years have been working with different variations on UDT, while Eliezer hasn't participated much in the discussions due to being preoccupied with other projects. It seems understandable that he saw some ideas that somebody was playing with, and thought that everyone was assuming something similar.
Yes. And now, MIRI is planning a decision theory workshop (for September) so that some of this can be hashed out.