Comment by aurareturn

On the topic of black holes, there is a recent paper on black holes potentially converting mass into dark energy: https://iopscience.iop.org/article/10.1088/1475-7516/2024/10...

I'm not a physicist but it's interesting to think about the implications:

1. No singularity at the center of a black hole

2. Universe's expansion rate is not constant because it's blackholes powering it with matter

3. Eventually expansion slows, stops and reverses

And now my own crazy ideas:

1. Maybe the universe is a inside a black hole

2. Maybe the big bang was a result of the birth of another black hole somewhere else, and that the rapid expansion rate of the early universe was due to the a huge amount of matter converted into dark energy by this black hole