I didn’t believe it when I first heard it. I don't know how to reconcile this fact with what I understand about the known laws of physics. It appears to be one of the grandest mysteries I can think of. I understand that most of the universe is empty space but zero volume is different. Anyways, here are my thoughts on the subject. 1) Philosophically, if it has zero volume, how can one say that it even exists? (Aside from the obvious like gravitational effects and the light surrounding). BHs are the polar opposite of what is considered empty, and yet, they're ‘empty’ (or devoid of space/matter) as well. I can’t think of anything else in the universe that has no volume but can still interact with other objects. 2) Based solely upon my intuition (which doesn't count for much here), I would expect a different outcome from extremely dense collections of mass... i.e. once enough matter has accumulated, rather that imploding into a BH it either idles or EXplodes since it can't handle any more stress. 3) When you consider that BHs have zero volume, it doesn’t seem to make sense when you compare one with another. BH masses can differ but isn’t that mass really just the accumulation of the mass around it? If so wouldn’t that make all BHs the same size? 4) Since space-time is expanding more rapidly than light can travel, doesn't this imply that our universe exists within a BH? If so doesn't this hint at the potential fate of the matter pulled into a BH? 5) Let’s pretend that massive collections of matter don’t form BHs, and instead, blink out of existence once enough mass is present to create one. This would send matter careening out into space away from where the BH would normally form. What I’m wondering is what type of buffering effect a BH has on the universe, specifically on how it alters the rate of expansion/contraction. 6) Last one… what happens to a BH when it ‘dies’ (if that’s even possible)...? does it revert back to the critical mass required to create one? Or does it just blink out of existence without much of a show? Thanks for reading. Comments are welcome.