User blog comment:DYBAD/Character Sheet/@comment-24441215-20141212082752/@comment-4867780-20141214025913

The Big Bang reference was just a human-friendly metaphore to illustrate the idea of beginning. There was no Omniverse Big Bang in my character's backstory, it simply emerged into defined existence from there, initiating the chain of events that eventually lead the existence of all current verses.

This origin story was designed to be compatible with all known fictional verses, and I can't imagine any other better suited for this purpose.

Writters may of course proclaim full indepdendence from a metafictional perspective, but from an in-universe viewpoint it's very difficult to credibly justify. After all, sentient beings are naturally under the impression that they always existed, and completely unaware that the known world is a small part of a much greater system.

Imagine a series of entities simultaneously born long before any other, with nothing to remind them of a precious time. They will naturally think they were always there.