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Name: J Miller
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Can anyone help me understand what caused the big bang?

Nobody knows. There is one theory, called "inflation" that suggests it was caused by a quantum mechanical "fluctuation" in an older background universe that raised the energy of a very tiny portion in such a way that portion just grew and grew and grew in size (inflationary expansion). There are other theories that are associated with black-hole formation in pre-existing universes. And of course there is the anthropic principle: if we were not here, then in all probability the universe would look very different.

A Smith

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