Particles can reach the singularity inside a black hole in finite proper time
the verdict
CONTESTED
contested - evenly split
refutedsupported
the weight of evidence
2 sources for · 1 against
General relativity literature contains conflicting results, with standard analyses indicating that infalling particles reach the central singularity in finite proper time, while alternative gravity models or modified formulations can yield infinite proper time or avoid singularities entirely.
Abstract It has long been known that once you cross the event horizon of a black hole, your destiny lies at the central singularity, irrespective of what you do. Furthermore, your demise will occur in a finite amount of proper time. In this paper, the use of rockets in extending the amount of time before the collision with the central singularity is examined. In general, the use of such rockets can increase your remaining time, but only up to a maximum value; this is at odds with the ‘more you struggle, the less time you have' statement that is sometimes discussed in relation to black holes. The derived equations are simple to solve numerically and the framework can be employed as a teaching tool for general relativity.
The vacuum, static, and spherically symmetric solutions in the mimetic Born-Infeld gravity are studied. The mimetic Born-Infeld gravity is a reformulation of the Eddington-inspired-Born-Infeld (EiBI) model under the mimetic approach. Due to the mimetic field, the theory contains non-trivial vacuum solutions different from those in Einstein gravity. We find that with the existence of the mimetic field, the spacelike singularity inside a Schwarzschild black hole could be altered to a lightlike singularity, even though the curvature invariants still diverge at the singularity. Furthermore, in this case, the maximal proper time for a timelike radially-infalling observer to reach the singularity is found to be infinite.
geodesic must enter (or leave) the singularity not only in a finite proper (or affine) time, but also in … (2) Is the form of the singularity stable? (3) Is the fact that the singularity cannot be seen from … some black hole B2(72) on the surface $(72) which will be said to be descended from the black hole Bi(71)
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