Expanding space, quasars and St. Augustine's fireworks

TL;DR

This paper proposes a novel explanation for the apparent lack of time dilation in quasar light curves, suggesting quasars are external to the universe's Hubble flow, inspired by the Milne cosmological model.

Contribution

It introduces a new hypothesis that quasars are outside the Hubble flow, providing a natural cosmological justification inspired by the Milne model.

Findings

Quasar black holes may be foreign to our universe's expansion.

The Milne model offers a natural framework for this hypothesis.

The explanation addresses the observed non-dilation in quasar light curves.

Abstract

An attempt is made to explain time non-dilation allegedly observed in quasar light curves. The explanation is based on the assumption that quasar black holes are, in some sense, foreign for our Friedmann-Robertson-Walker universe and do not participate in the Hubble flow. Although at first sight such a weird explanation requires unreasonably fine-tuned Big Bang initial conditions, we find a natural justification for it using the Milne cosmological model as an inspiration.