D_Malik comments on Torture vs. Dust vs. the Presumptuous Philosopher: Anthropic Reasoning in UDT - Less Wrong

16 Post author: Wei_Dai 03 September 2009 11:04PM

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Comment author: D_Malik 25 March 2015 12:42:13AM *  0 points [-]

I don't think this is a good argument against SIA. The most natural interpretation of SIA gives a posterior of zero for each Ti, so it doesn't actually say we "live in the universe with the most people".

"T{i+1} is half a trillion times as likely as Ti" doesn't actually imply "T{i+1} is more likely than Ti", because those probabilities are both zero.