I hope I will be welcome here. Please keep in mind that I have a very limited and novice understand of science and maths. I guess you could say I'm here to understand the big bang and how it can be plausible for our universe to exist the way it does. Several years ago I saw this production called "Nova: The Elegant Universe". It goes over things like Quantum mechanics, string theory, alternate dimensions, etc. Much to my surprise I did not find what I saw to be hard to understand at all, that is, if I'm to believe I'm correct in my understanding of it. Coming from a religious background, I was basically looking for an answer which proves how the universe can exist the way it does without needing a 'God'. I do believe Quantum mechanics provides this answer. It's quite fascinating. Now, my problem is that recently I've become very interested in this once again. Alternate realities, etc. In the last few days I've tried doing research to confirm that my understanding of quantum mechanics is correct. While it does seem I'm correct, I was shocked that no articles I read provided the same, simple answer I have in my head for why the universe exists as it does. I will provide my own understanding here, and I ask that you confirm whether or not I'm correct. But I find it strange that the explanation isn't simplified anywhere else. Simplifying the explanation for someone at a novice level (like me) would help put to rest claims like "the universe needs a god in order to exist". That's why I find it strange that I cannot find the elaboration elsewhere. It would be quite easy to summarize for beginners, yet it appears it's not been done. Not even "Nova: The Elegant Universe" explained it in that detail; I merely had to connect the dots myself. This gives me a strange feeling that either my conclusions are entirely wrong, or that my understanding is much more advanced than I think. Believe me, I'm not trying to preach science here. I'm asking you to confirm and correct me where/if I'm wrong, and then explain things to me better. My understanding of how our universe began according to quantum mechanics is: Basically we are incapable of comprehending all the phenomenon of our universe. The universe itself is a combination of possibly an infinite number of 'alternate realities'. These realities present themselves whenever *anything* within the universe is prone to chance. Any time an event is prone to chance, each possible chance does occur. As flesh/blood creatures we are incapable of experiencing more than one reality, more than one consciousness, yet there are in fact an 'infinite' amount of ourselves existing within these alternate realities which, likes ours, exist due to variables and random chances. Since every possible chance that can occur does occur, this means that some (and many) realities have very bizarre things happening within which are in fact very scientifically unlikely, or even near impossible. Even if there is only a 0.000000000000000000000000001% chance of an event occurring, that event does occur, though it is unlikely that 'we' will actually experience it for 'ourselves'. I find that this theory could be used to potentially explain nearly all strange happenings within our universe. What this means is that the big bang - and our universe - actually exist due to the occurrences of very unlikely chances becoming reality. The chance of the 'big bang' happening was probably nearly impossible. Yet because of quantum mechanics, it did happen. Even more unlikely was that a big bang would result in the complex universe we have today - but that naturally happens as well due to chance. But in many realities, the universe does not exist. The big bang did not happen. In other realities, the big bang happened but the universe burned out before it was able to expand significantly. And there are certainly other realities where the universe resulted in a much more complex state than ours. As unlikely as the big bang was, the concept of life existing is also extremely unlikely. Yet, it happened. What this means, I think, is that we are part of a very beautiful reality. We are part of an *extremely* unlikely reality which exists due to a series of coincidences and amazingly complex events occurring to bring us to where we are today. Chances are there may be more realities where none of this exists, than realities where it does exist. Then again, the more that exists and the more complex the things within a universe are means many more events being left up to chance, which means an even greater splitting of reality. If quantum mechanics is true then reality must be splitting a part likely a near infinite amount of times every millisecond due to all the phenomenon and chances occurring within the universe, on planets, and here on earth. When I think about things like this, I find it almost silly to ask "why" or treat something as impossible whenever we cannot explain a phenomenon. Some people act is if our universe - our reality - is so special and so 'unlikely', when in fact it is just another chunk of many other realities happening simultaneously as ours. Each reality is equal to ours, and just because we are experiencing whichever reality doesn't mean it's "all that exists". Virtually any reality you can imagine is real, and is just as real for the inhabitants as this one is for you. ------ Am I right about this, more or less? Again, I just don't understand why this isn't explained in this simplified format on other websites and articles. It seems that most information on this expects the reader to connect the dots for themselves. But I feel like the point is been missed by all sorts of people who need to resort to unscientific claims to explain why the universe, and life, exists. It would appear to me that in quantum mechanics, the concept of the universe not existing is even more unlikely than the universe existing.