# Bimetric cosmology is compatible with local tests of gravity

## TL;DR

This paper challenges previous claims by demonstrating that bimetric gravity models can be consistent with both cosmological expansion and local gravity tests, providing counterexamples to earlier conclusions.

## Contribution

The authors refute prior assertions by Kenna-Allison et al., showing that bimetric gravity can be compatible with local tests and cosmological observations through simple counterexamples.

## Key findings

- Counterexamples show bimetric gravity can match cosmological and local gravity tests
- Previous claims of incompatibility are not universally valid
- Bimetric models remain viable for cosmology and gravity tests

## Abstract

Recently, Kenna-Allison et.al. claimed that bimetric gravity cannot give rise to a viable cosmological expansion history while at the same time being compatible with local gravity tests. In this note we review that claim and combine various results from the literature to provide several simple counter examples. We conclude that the results of Kenna-Allison et.al. cannot hold in general.