Tyrrell_McAllister comments on A Problem About Bargaining and Logical Uncertainty - Less Wrong

23 Post author: Wei_Dai 21 March 2012 09:03PM

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Comment author: Vladimir_Nesov 25 March 2012 04:03:35PM *  0 points [-]

It's assumed that the agent doesn't know if the digit is odd (and whether it'll be in the situation described in the post) at this point. The proposal to self-modify is a separate event that precedes the thought experiment.

Comment author: Tyrrell_McAllister 25 March 2012 04:40:36PM *  2 points [-]

It's assumed that the agent doesn't know if the digit is odd (and whether it'll be in the situation described in the post) at this point.

Yes. Similarly, it doesn't know whether it will be asked (rather than do the asking) at this point.

Comment author: Vladimir_Nesov 25 March 2012 04:54:13PM 1 point [-]

I see, so there's indeed just one bit, and it should be "don't cooperate".

This is interesting in that UDT likes to ignore epistemic significance of observations, but here we have an observation that implies something about the world, and not just tells where the agent is. How does one reason about strategies if different branches of those strategies tell something about the value of the other branches?..