I hate posting this because it might make me look like a complete idiot, but I don't know much about physics and this is just my observation. I was thinking that undergraduate students must have already their professors this question, if not people like me before and considered it. I mean it must not be that easy because then there wouldn't be a problem connecting quantum physics, with gravity, and electromagnetism, etc. In the quantum world, time could move so fast that we can't comprehend it or measure it. It was measure in planktime (4340 trillionth of a second i think) big bang point to expand. The atom seems like a mini galaxy, Mini solar system, mini universe, all like each other just in various sizes, gravity, and space time. With all of the same rules just at different phases of the big bang/big crunch. The big crunch is a black hole sucking in all things, the big bang a singularity blowing out everything. Supernova like the big bang in the case of the solar system and stars exploding. The galaxy is like a atom with all of the same rules, a solar system, a universe. I mean they look the same, they all have smaller parts circling around them. The popping in and out of existence is the mini singularities (sub-atomic particles) happening at incredible speeds . Black holes sort of pop in and out of existence, they become this massive dense point, then they could explode again over and over again. The universe is expanding and then it might collapse into another dense point or keep expanding being pulled by another universe which has more density and is sucking our smaller universe in with a more powerful force of gravity. I bet everything I'm saying makes little sense or is too juvenile, with but at least I'm trying to find the answers. I hope that one day someone discovers a unified theory, or perhaps we can see farther into the unknown.