Comment on "Observational Evidence for Cosmological Coupling of Black Holes and its Implications for an Astrophysical Source of Dark Energy"

TL;DR

This paper critiques a recent claim that black holes cause cosmic acceleration, clarifying that the argument is flawed due to a misunderstanding of the principle of least action.

Contribution

It clarifies the misconception in the previous claim, demonstrating that black holes cannot be the source of dark energy based on the principle of least action.

Findings

The claim linking black holes to dark energy is based on a confusion.

The principle of least action does not support the cosmological coupling of black holes.

Black holes are unlikely to explain the universe's accelerated expansion.

Abstract

It was recently claimed that black holes can explain the accelerated expansion of the universe. Here I point out that this claim is based on a confusion about the principle of least action, undermining the link between black holes and dark energy.