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“For argumentation, we can imagine there is only this Universe we are aware of, and we can treat it, along with black holes, as if there is nothing beyond it except absolute nothingness or absolute void. This world would be Einstein’s space with the curvature of space. Beyond it, there is a “spaceless space” without curvature. But without the uncurved “spaceless space,” curved space is impossible. This spaceless space is nothingness, and only a void provides room for the creation of space. The only real space is the spaceless space or absolute vacuum, and this spaceless space cannot be curved. What is curved is the creation that took “one part” of the primordial void, to put it that way, to create the World—the gravitational field and the spacetime continuum. But the primordial void, or the only real space that there can be, is not curved and cannot be curved.” — Dejan Stojanovic