If we imagine only our Universe as space in the ocean of nothingness, all the physical, natural forces will not affect the rest of nothingness at a far enough distance from our universe. All this nothingness would just be nothingness.If we now imagine one more universe, as ours is, there would be some impact of one on the other if they were close enough, and there would be a relationship between them so we could measure distance and have two points of reference.If we now make a giant leap of imagination, we can imagine a macro universe containing a similar number of universes as there are galaxies in ours; let’s say 100,000—1.000,000 or trillion universes, this universe would still have our universe and one million or a trillion more. This universe, at least one million times bigger than ours, would not affect the nothingness much more than a universe one million (or trillion) times smaller. The impact of this universe would be one million times larger and contaminate nothingness one million times more, but still, nothingness would be largely unaffected. The same would happen if we now imagine a universe a million times bigger than the previous one and if we continue to imagine a macro macro universe or a googolplex universe. Even a universe the size of 10googol of our own would not affect the rest of nothingness much more than ours affects it. Beyond the contamination of nothingness produced by a universe with the size of Googolplex larger than our own, the rest of nothingness would stay the same and unaffected.If all existences or universes were created again and again, along with the new ones, the rest of nothingness would still be equally unaffected and capable of accepting or inhabiting the new ones.Even if we imagine the googolplex googolplex googolplex size of anything, nothingness would still be able to accept or inhabit Everything. There is no number large enough to reach the end of nothingness. Infinity is simply endless.All these universes or an Omniverse would be space in the sense we understand it. But space would not be possible without nothingness. Regardless of the curvature of space (and time) or any imaginable physical law, the underlying reality of space would still be nothingness. Space, as we understand it, would not be possible without it.