[PeterPrinciple]

They have. Do your homework.

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Really?

Do your homework.

https://www.space.com/31192-what-triggered-the-big-bang.html

The Big Bang theory is a model of the history of the universe, tracing the evolution of the cosmos to its very earliest moments.

[TexasGator]

“Really?”

Yes! From your link:

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There are, of course, some ideas out there — models that attempt to describe what “ignited” or “seeded” the Big Bang,