[quantadev]

If Big Bang advocates can claim the Big Bang created a whole universe of matter in a single instant as if by magic, then we can likewise make the simpler more scientifically justifiable claim that emptiness spawns tiny bits of matter everywhere, all the time.

The fact that CMB lines up with an explosion theory may simply be that Black Holes are mathematically similar to explosions (i.e. starting small, and growing spherically)

Regarding Event Horizon surface, I say there's something like wave-particle duality going on with this observer v.s. observed paradox. The EH is both a 'surface' and 'not-a-surface' depending on your perspective. Physics is odd enough for these kinds of paradoxes, when there's equal evidence for both viewpoints.