The Big Bang is creation of everything in the Universe. The Universe grew and then lighted up and then faded. This is how nothing became something. All by just a bang. It looks like it rules out the law Nothing can be Created or Destroyed. In these terms, it's okay. Those laws only apply to the Universe. It may came from two Parallel Universes slamming together. It's size was a couple times larger than The Universe but we don't know how big it was exactly.

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