Would it just wipe out everything, or would something else occur?
What would happen if you were to release the energies of the big bang in our universe a second time?
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We don't know how much energy was released in total. Some people think that the total energy balance of the universe is zero. What would happen if you release zero energy? Nothing. – CuriousOne Feb 05 '16 at 04:24
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@CuriousOne: Should we tolerate what-if questions? – Feb 05 '16 at 04:27
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2@user36790: Depends on the question, I would say. I am not making the rules around here and if I find a question really bad, I am voting it down. This one is a borderline case because one can answer it in meaningful ways, in my opinion. I hinted at a possible scenario in my comment that one would have to consider seriously and there are others that I wouldn't want to discuss because I don't know enough about cosmology at the quantum level. Someone else might bring those up. Or maybe there are enough who think that this isn't even remotely close to physics... I could live with that, too. – CuriousOne Feb 05 '16 at 04:34
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This question does not really make sense because the big bang was not a "release of energy", see also Did the big bang happen at a point?. – ACuriousMind Feb 05 '16 at 14:38
1 Answers
What would happen if you were to release the energies of the big bang in our universe a second time?
Have a look at this standard history of the universe,
History of the Universe - gravitational waves are hypothesized to arise from cosmic inflation, an expansion just after the Big Bang
Our universe is now at the far right. Note the beginning at far left where all the energy is concentrated in the inflation period.
If you introduce something like that inflation discontinuity at the far left, in our current universe on the far right, it will eat it up as a black hole attracts all the surrounding matter. It will be a very strong gravitational well. How fast everything would disappear for us is dependent on where this materializes. If next to us, immediately. If some light years away, it will take some years.

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