Return of the Boltzmann Brains
High Energy Physics - Theory
2009-02-23 v1
Abstract
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.
Cite
@article{arxiv.hep-th/0611158,
title = {Return of the Boltzmann Brains},
author = {Don N. Page},
journal= {arXiv preprint arXiv:hep-th/0611158},
year = {2009}
}
Comments
7 pages, LaTeX