timtyler comments on Outlawing Anthropics: An Updateless Dilemma - Less Wrong
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But we don't have the type of amnesia drugs required to manifest the Sleeping Beauty problem, and perhaps there is something about consciousness that would prevent them from ever being created. (Isn't there some law of physics that precludes the total destruction of information.)
Microscopic reversibility prohibits any destruction of the information necessary to run things backwards - and that's all the information in the universe as far as we know.