Big Bang Not Unique?

Theories of the universe abound. They tend to focus on it's creation. How did it all start? We just don't know, and it's possible we may never know, but that's no reason to conjure up gods, djinns or pixies. The current consensus is that our bubble universe started with a Big Bang about 13 billion years ago. This doesn't mean there was necessarily a creator or even a creation. Maybe, in the greater universe, Big Bangs are a regular occurrence.