Forgive me if this has been asked/answered before but this is something I've wondered about since I was six years old. Please keep in mind that I know nothing about Physics (I didn't even take physics in high school) so I apologize if this sounds stupid. From what I understand, matter/energy can never be created or destroyed, only changed. Based on what I know about the big bang, the basic idea is that everything that makes up our universe was originally contained in an immensely tiny particle that exploded and expanded outward correct? Doesn't there have to be a time prior to the big bang before the creation of the universe where nothing exists? And if so, how does that nothing turn into whatever was necessary to create the big bang in the first place? I'm familiar with the idea that our universe was created as another was colapsing, but even then if you trace the origins of existance back far enough wouldn't there still need to be a time where nothing existed and then suddenly it did? Obviously there's no way to know what really happened, but is there any theory ouy there with even a possible explanation of what happened prior to the big bang? Is this something thats ever been addressed anywhere before?