Is a Quantum Gravity Era Necessary?

TL;DR

This paper proposes a classical cosmological model that avoids quantum-gravitational eras and singularities, passing extensive consistency checks and potentially explaining key cosmological phenomena like matter-antimatter asymmetry and the Hubble tension.

Contribution

It introduces the first comprehensive classical framework of the entire cosmological history that bypasses quantum gravity and singularities, with implications for unresolved cosmological issues.

Findings

Model passes all known consistency checks

Can account for matter-antimatter asymmetry

Addresses the Hubble tension

Abstract

We present the first published framework of the entirety of cosmological history which is thoroughly classical (without any quantum-gravitational era or singularities) and which passes all the known extensive consistency checks on such a model, and discuss some of its possible cosmological implications, such as its ability to account for the matter-antimatter asymmetry, dark flow, and the Hubble tension, albeit at the cost of further assumptions.