I think you don't understand whata theory is. A theory is something that has been mathematically proven, although nobody can actually go back in time to see if there was a big bang.
There is no proof that a 'god' exists therefore it cannot be counted as a theory.
This is kind of my theory, but that when it comes to a halt, it reverses to dicrease the size of the universe and eventually becomes so small on a subatomic level that there is no movement in the atoms, which causes another big bang to happend.
Now this is a 'loop' (C a l l u m)
But everytime the big bang happends it's unique. Our earth could be billions of miles from its current location, and our sun could be blue.
Humans would likely not exist as there was a very small chance that humans developed (Somewhat near 1/10000 of a percentage)
Therefore, any alive creatures would most likely look entirely different to todays living creatures, unrecognizeable creatures.
Check any website the big bang has never ever been proven.
