If you think of pages in a book ving, then the space between the pages is like gap between universes, the "nothing". Universes appear to be almost touching in one or more "other" dimensions yet at the same time "infinately" distant in our 4 diminsional (time,space)view.
Yes the idea of "nothing" is hard to comprehend, especially with our socialized comtempory view being "without substance" ie a vacuum. However vacuums have energy (albeit negative energy or dark energy as it is now being proposed) therefore vacuum can't be "nothing". Also our concept of "space" vacuum exists in a time frame, our time frame, and with time being part of our 4 experiential dimensions again it can't be "nothing".
So what did we "big bang" into and what is surrounding our universe? REAL nothing, to our perception not even an abscence of something, as that would imply that there was something there to begin with. No time, no space, it could be empty or it could be solid, in some other dimensional reality. We just can't physically know it.
Maybe its some hyperdimensional bag and we're just marble rattling round inside, eg MIB
Its pretty deep stuff ving but really interesting.
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