Is there a limit to how much spacetime can be curved? My question is about the fact that general relativity predicts bending of space and time. However, I have not seen anything regarding the limits to how much space or time can be bent.
So my question is that is there anything (like a hypothetical short ranged repulsive force) that actually puts some limit or is any 'warping' possible.
 A: The only thing I would consider to be a "limit" to spacetime curving in general relativity is a gravitational singularity:

A gravitational singularity, spacetime singularity or simply singularity is a location in spacetime where the mass and gravitational field of a celestial body is predicted to become infinite by general relativity in a way that does not depend on the coordinate system.

Gravitational Singularity - Wikipedia
The most common singularities are in black holes where the density and thus the "warping" of spacetime is considered to be infinite. However, this singularity cannot be described by general relativity - a theory of quantum gravity would be needed.

This answer does not make any statement on how much curvature can be described by general relativity; I am probably missing something here (I also only have a basic non-mathematical understanding of GR). I hope someone else can go into more detail.
A: The short answer is no. The components of the Riemann tensor, which is an object measuring the curvature of the manifold at a point, can take any real number value. In classical GR, there's nothing which bounds these numbers, but when they diverge to infinity at a point it indicates a problem with our classical description (see discussions of singularities in GR for more details about this).
