I have a problem with the concept of a singularity, defined as something that has a property which is infinite. Infinities do not belong in our reality, and in my opinion are just hints that our understanding of the phenomenon is incomplete or wrong. From my understanding, during the collapse of a star, there are certain stages that can prevent the formation of a singularity, if the star is not too massive. At first the pressure, then the repelling force between particles, and then we are told, that there is nothing left that could prevent the collapse into a single point. But would it not be more likely, rather than having a point of infinite density, that there actually is something that prevents the formation of a singularity? Like for example the pressure of the quantum foam or dark energy, or some other force or phenomenon that we haven't discovered yet. What is the common answer to this idea? How sure are we, that singularities exist? I have this idea, that even if we compress the entire Universe into a single point, it will not collapse into a singularity, but rather into something really tiny, maybe as small as a Planck length or smaller, but that some force will still prevent an infinite value. Is there actually something that proves that a singularity exist, other than equations that produce infinities? Or do we take it "on faith"?