Black holes exist in space-time, they do not create it (even if they explode). The Big Bang made space-time happen. It was not an explosion in any normal sense.

Black holes exist in space-time, they do not create it (even if they explode). The Big Bang made space-time happen. It was not an explosion in any normal sense. For whatever reason popular cosmology has done a really poor job of getting that across, so you're not alone. It seems only a very small proportion of people who have heard of the Big Bang in the first place, think of it as something other than just really big, but otherwise unremarkable, explosion.