Felinic principle and measurement of the Hubble parameter

TL;DR

This paper examines how the measurement of the Hubble parameter is biased by the fact that observations are made from a galaxy similar to the Milky Way, considering the anthropic selection effect on intelligent life.

Contribution

It introduces a correction method for Hubble parameter measurements accounting for the anthropic bias of observing from a Milky Way-like galaxy.

Findings

Measurement bias is significant when considering observer location.

Corrected Hubble parameter estimates differ from uncorrected ones.

The Felinic principle impacts cosmological measurements.

Abstract

Intelligent life can only appear in Universes, whose physical laws support sufficient complexity to make evolution of intelligent beings possible. Even inside those Universes, intelligent life does not appear randomly, but in parts with realized complexity, e.g. around stars in our Universe. As a consequence, the observational point of an intelligent observer cannot be assumed to be random and one must correct for this selection effect. In this paper we calculate how direct measurements of the Hubble parameter are affected when subject to the condition that they are observed from a Milky Way-like galaxy.