Ok. I've got to know what you guys think of my pet theory. << URL snipped >> There are some things I'll never understand, like quantum gravity, and the like. But I'm an engineer so I can piece some things together. What I want to know is, what is wrong with my pet theory? There's GOT to be something wrong with it. After all, I'm not a cosmologist. Fire away! For those who don't want to read the long version, basically I think the whole universe is the inside of a gigantic black hole. There is enough apparent mass in the universe to create an event horizon roughly 170 billion lightyears in diameter. I suggest that the universe has no beginning or end, but has a recycling process (rapid growth of smaller black holes) that keeps it from decaying. The expansion of the universe might be an optical effect arising from this process, making objects appear closer than they really are. The alternative I have, but still in line with most of the above reasoning, is that the expanding cloud of matter that makes up our universe came from a particle shower rather than a singularity (since I argued that singularities effectively don't exist). The problem with this idea is that it would require some extraordinary collision to cause so much matter to "flash into existence". I'm assuming my pet theory is so poorly contrived as to shortly become roadkill. So what do you buzzards think of my ideas?