Structure of the Inner Singularity of a Spherical Black Hole

TL;DR

This paper reviews the evidence regarding the inner singularity of spherical black holes, focusing on the possibility of a lightlike, mild segment characterized by mass inflation.

Contribution

It provides a comprehensive review of the theoretical and observational evidence concerning the structure of the inner singularity in spherical black holes.

Findings

Evidence supports the existence of a lightlike segment with mass inflation.

The inner singularity may be less destructive than traditionally thought.

The review highlights areas needing further research.

Abstract

We review the evidence for and against the possibility that the inner singularity of a black hole contains a lightlike segment which is locally mild and characterized by mass inflation.