Ridiculous!
Parallel universes? unprovable, and so speculating about them is unscientific.
The laws of physics DID apply at the beginning, OR they are wrong.
Please don’t expect me to believe that the entire Universe was contained in a dense ball of matter the size of a pea. This pea has no antecedents, so it came into existence without a cause.
Or it was spawned by another Universe, which then had to have been given birth by another Universe, in an infinite regression. Infinite regressions don’t happen. Infinite means you never reach the end.
Keep trying.
Today’s “big bang” is an attempt by the left to secularize theologian Georges LeMaître’s ideas.