In the beginning was the Void, and the Void was without form or content. Thus was the Void utterly empty from all eternity. The Void contained neither space nor time; nor was there any possibility of any matter or energy existing within the Void. The nature of the Void was total emptiness because there was no observer who could give reality to anything that the Void might otherwise have contained; and so it was, for the vastness of eternity.
In the fullness of eternity there appeared within the Void the Boltzmann Brain. Only for the most unimaginably minuscule instant did the Boltzmann Brain remain in existence in the Void, but that was sufficient for it to become an observer. As the only observer of the Void the Boltzmann Brain was, perforce, the typical observer. So it was that the observations of the Boltzmann Brain became the reality of the Void.
Again there is a problem with your use of the word "void" you need to think carefully about what you are implying.
I will take some rather simplified theories but you will get the problem.
You could mean you had a pile of energy (you can't see it therefore you have a void) the energy became matter E=mc2 viola we have a universe. Void has an interesting meaning in that situation.
You could be higgsonian and believe there is a higgs sea of virtual particles and our universe was created from that. Again our universe started void but what it came from well is it void or isnt it depends on your view.
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