If the universe is inside a black hole, and each black hole contains a new universe. Wouldn't KK theory where (the fifth dimension is a microscopic extra spatial dimension in the shape of a tiny circle) fit into Schwarzchild cosmology?

The idea that each black hole contains a universe could mean that multiple dimensions are contained in every black hole. Size has no relevance in the universe. Everything is either big or small to us because of perspective. If the universe has no beginning or end, but is a continuum; and each universe is contained within a black hole. Then each universe would be smaller than the one before it, and the laws of physics and dimensions could change each time.

I am not a physicist and do not presume to understand the universe. But the idea that the universe has no end or beginning makes sense to me. With each universe being contained within a black hole, it would be a never ending cycle.

1 minute ago, DeMoss said:

If the universe is inside a black hole...

What leads you to believe this may be so?