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2 years ago in Astrophysics By Princy

What existed before or during the Big Bang?

In frameworks like quantum cosmology or inflationary theory, what is postulated about the pre-Big Bang universe or its initial conditions?

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By Sonam Bhatia Answered 1 year ago

The Big Bang describes the emergence of space, time, and matter from an extremely hot, dense state. There was no pre-existing "space" for it to explode into; the expansion *created* space itself. Questions about "before" are speculative, as our current laws of physics break down at the initial singularity.

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