Mutiny at the white-hole district

TL;DR

This paper explores bouncing geometries involving both black- and white-hole sectors in Kruskal's solution, proposing they could naturally occur in advanced theories beyond classical general relativity to address issues in gravitational collapse.

Contribution

It introduces the concept of bouncing geometries that utilize white-hole sectors, offering a novel perspective on gravitational collapse and evaporation beyond classical GR.

Findings

White-hole sectors can be incorporated into bouncing geometries.

Such geometries may resolve problems in gravitational collapse.

These behaviors could be natural in theories beyond classical GR.

Abstract

The white-hole sector of Kruskal's solution is almost never used in physical applications. However, it might contain the solution to many of the problems associated with gravitational collapse and evaporation. This essay tries to draw attention to some bouncing geometries that make a democratic use of the black- and white-hole sectors. We will argue that these types of behaviour could be perfectly natural in some approaches to the next physical level beyond classical general relativity.