Freak observers and the measure of the multiverse

TL;DR

The paper proposes a new interpretation of the measure in the multiverse, distinguishing between vacuum fluctuations and observer formation, effectively addressing the issue of freak observers or Boltzmann brains.

Contribution

It introduces a novel interpretation of the measure components in the multiverse, separating equilibrium fluctuations from observer formation processes.

Findings

The measure accounts for equilibrium de Sitter vacuum fluctuations.

The formulation avoids the problem of freak observers or Boltzmann brains.

It clarifies the roles of different factors in multiverse probability calculations.

Abstract

I suggest that the factor $p_j$ in the pocket-based measure of the multiverse, $P_j=p_j f_j$, should be interpreted as accounting for equilibrium de Sitter vacuum fluctuations, while the selection factor $f_j$ accounts for the number of observers that were formed due to non-equilibrium processes resulting from such fluctuations. I show that this formulation does not suffer from the problem of freak observers (also known as Boltzmann brains).