If the world, the Universe, or the Multiverse, has a beginning, then its substance must exist in the form of a spatially finite physical reality, possessing the necessary potential. Obviously, it is hard to believe that it arose from absolute Nothing. Therefore, it has existed eternally, and at a certain moment, it spontaneously began to self-organize, thereby ending its epoch. Hence the corresponding question: "What can be said about the concept of time during the period of existence of this substance?"
What can be most generally said about matter as a substance and material of our world? - a) It has eternally and immeasurably filled the boundless infinite space and simultaneously possessed a self-organizing property, that is, a property capable of generating intelligent beings; b) It has eternally existed in a limited volume, not possessing a self-organizing property, but over time spontaneously acquiring it; c) Another explanation.
