>>9640096There's a theory along the lines of explaining this that "singularities" don't exist and at the center of a black hole is actually a "Planck star," where all of the matter that makes up the black hole is simply being compressed into the smallest volume physically possible and will eventually rebound. This process should happen more or less "instantly" but the enormous time dilation involved means that it would take longer than the current lifespan of the universe for it to play out in even just a stellar mass black hole.
As to why "black holes" even form as we (expect to) "see" them, it's because the "hole" represents the event horizon, the threshold where it's no longer possible for energy/information to escape in any direction but inward toward the gravitational field's center. That threshold necessarily doesn't represent an infinite "hole," just one too "deep" for light (or anything else) to escape from.
