title: Holographic probabilities in eternal inflation.
abstract: In the global description of eternal inflation, probabilities for vacua are notoriously ambiguous. The local point of view is preferred by holography and naturally picks out a simple probability measure. It is insensitive to large expansion factors or lifetimes and so resolves a recently noted paradox. Any cosmological measure must be complemented with the probability for observers to emerge in a given vacuum. In lieu of anthropic criteria, I propose to estimate this by the entropy that can be produced in a local patch. This allows for prior-free predictions.
authors.affiliation: Center for Theoretical Physics, Department of Physics, University of California-Berkeley, Berkeley, CA 94720-7300, USA.
authors.forename: Raphael
authors.initials: R
authors.lastname: Bousso