Comment on ``Theorem for nonrotating singularity-free universes''

TL;DR

This paper critiques Raychaudhuri's theorem, arguing it cannot dismiss the possibility of realistic, singularity-free nonrotating universe models.

Contribution

It provides a critical analysis showing the limitations of Raychaudhuri's theorem in ruling out certain cosmological models.

Findings

Raychaudhuri's theorem does not exclude singularity-free universes.

The theorem's applicability to realistic models is limited.

Singularity-free universe models remain plausible despite the theorem.

Abstract

We show that Raychaudhuri's recently proposed theorem on nonrotating universes cannot be used to rule out realistic singularity-free descriptions of the universe, as suggested by him in PRL 80, 654 (1998).