Wei_Dai comments on Frequentist Magic vs. Bayesian Magic - Less Wrong

41 Post author: Wei_Dai 08 April 2010 08:34PM

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Comment author: wedrifid 08 April 2010 10:35:59PM 0 points [-]

How superior would the universal prior be to this? I confess I can't do the math.

A lot, but it is not (particularly) quantifiable. Allowing H to be an unknown constant rather than 0.5 allows for many more possible algorithms, but it is only an iterative step towards 'allow any algorithm'. That, in turn, is not as good as 'allow any algorithm but with a prior distribution based on complexity'.