But IMO Black Hole Inflationis the only astrophysical process that resembles the universe on a grand scale. Nothing else makes sense. Black holes are an intuitive result of gravitation, and there is evidence for them. They are born, they grow, and then they grow faster, and faster, and faster. I found some papers on the subject at http://arxiv.org by using keyword searches like "black hole cosmology".

One good example is here. The authors tackled this problem with much more sophisticated methods than myself and, if you read the entire, albeit short, paper, came to some amazing conclusions. However in spite of their conclusions the authors never suspected or hinted that universe itself might be a black hole! I'm bookmarking this paper for future study.