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arxiv: hep-th/0611158 · v1 · submitted 2006-11-15 · ✦ hep-th

Return of the Boltzmann Brains

Don N. Page This is my paper
classification ✦ hep-th
keywords boltzmanndescriptionhep-thproblemvolume-weightedambiguityapparentlyappear
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Linde in hep-th/0611043 shows that some (though not all) versions of the global (volume-weighted) description avoid the "Boltzmann brain" problem raised in hep-th/0610079 if the universe does not have a decay time less than 20 Gyr. Here I give an apparently natural version of the volume-weighted description in which the problem persists, highlighting the ambiguity of taking the ratios of infinite volumes that appear to arise from eternal inflation.

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