[MJA]

Welcome Flash to a pretty cool forum;
you asked for an idea, so think about this:

Imagine our planet as a single cell called Earth in a hypothetical universe we will call The Human Body Universe. Man is only a tiny part of this tiny cell which is part of the universe called The Human Body. As far as we can microcopically strain our instuments; we can only see so far. Beyond our limits or power of scope or reach is unknown. Infact much of what we believe we know is only theory at best. In the other direction from our tiny cell called Earth we strain our telescopes to the limits of there power to see the extent of our universe. We know from this tiny perception, from this tiny cell Earth, that our cell is only a tiny part of a group of cells making up The Milky Way Galaxy, which is just a tiny part of our universe. Each part is united by space or plasma. Beyond our cell called Earth and beyond our Galaxy is billions of other galaxies making up the Human Body Universe. And perhaps like ourselves there are billions of other universes much like the billions of other people that make up our cell Earth. And perhaps all of those universes are only a part of a bigger planet called EARTH, that is part of a bigger galaxy called THE MILKY WAY, which is part of a bigger universe called The HUMAN BODY, which is only a tiny part of INFINITE!

Would that be the theory of parallel universes?

To address your question of the Big Bang Theory, I believe because of our human nature to know, and our great capacity for imagination, we create ideas, or theories like The Big Bang. And perhaps The Big Bang is realistically how the Human Body Universe really did start, with a BANG!

Hope you like it here,

MJA