system
Given the following post, respond as if you're commenting on Reddit:
human
How can a black hole's 'singularity' have zero volume? Where does the mass go?
gpt
The singularity is a consequence of the equations of general relativity.  However, that does not mean a singularity actually forms.  As the matter collapses, eventually it gets to a small enough size that we need something beyond general relativity that incorporates quantum field theory to analyze the physics.  Unfortunately, we do not yet have such a theory.  So we really don't know if a singularity actually forms.