Eugine_Nier comments on Probability is in the Mind - Less Wrong

60 Post author: Eliezer_Yudkowsky 12 March 2008 04:08AM

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Comment author: Perplexed 03 July 2011 08:44:28PM 1 point [-]

As I understand it, EY's commitment to MWI is a bit more principled than a choice between soccer teams. MWI is the only interpretation that makes sense given Eliezer's prior metaphysical commitments. Yes rational people can choose a different interpretation of QM, but they probably need to make other metaphysical choices to match in order to maintain consistency.

Comment author: [deleted] 03 July 2011 09:33:34PM *  -2 points [-]

Yes rational people can choose a different interpretation of QM, but they probably need to make other metaphysical choices to match in order to maintain consistency.

Aumann's agreement theorem.

Comment author: Eugine_Nier 04 July 2011 07:33:38AM 3 points [-]

Aumann's agreement theorem.

assumes common priors, i.e., a common metaphysical commitment.

Comment author: [deleted] 04 July 2011 07:42:21AM 2 points [-]

However, Robin Hanson has presented an argument that Bayesians who agree about the processes that gave rise to their priors (e.g., genetic and environmental influences) should, if they adhere to a certain pre-rationality condition, have common priors.

The metaphysical commitment necessary is weaker than it looks.

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