RobinZ comments on Value Uncertainty and the Singleton Scenario - Less Wrong
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Quick dive into the concrete: I think that legalization of marijuana would be a good thing ... but that evaluation is based on my current state of knowledge, including several places where my knowledge is ambiguous. By Baye's Rule, I can't possibly have a nonzero expectation for the change in my evaluation based on the discovery of new data.
Am I misunderstanding the situation you hypothesize?
You can have a nonzero expectation for the change in someone else's evaluation, which is what I was talking about. The super-agent and the sub-agent have different beliefs.
I see - that is sensible.