Here I present my evidence for the eternal recurrence of the same, that effectively is a hypothesis capable of explaining why everything and anything exists. First I will present two premises that has to be accepted as true for the conclusions to be valid:
Premise # 1: It as a given that the Universe exists, and that its properties necessarily must meet the premises that our existence rests upon. The reasoning for this is obvious: If the fundamental physical forces and constants hadn’t been exactly the way they are, we hadn’t existed, hence we couldn’t have observed the properties that made our existence impossible in such a hypothetical universe. That the Universe and the Earth has exactly perfect, and seemingly “fine-tuned”, properties for us to exist therefore is nothing but reasonable and downright necessary.
Premise # 2: Consciousness is a consequence of physical existence. The Universe consists of a large amount of energy/matter that to any given moment is in a certain condition. The flow between different conditions is labelled with the term ‘time’. Consciousness arises as a consequence of energy/matter arranging itself in a certain condition/pattern in a limited amount of time. Consciousness isn’t more mystical than the sum of an individual’s senses and cognitive abilities/information processing. Hence, consciousness is a natural result of an advanced sensory apparatus and an advanced brain.
Conclusion # 1: If the Universe we live in is part of an everlasting cycle, the exact same universe will one time have to manifest again. Granted that consciousness is nothing more than the sum of the organism’s body, your consciousness/life will sooner or later have to be repeated in the exact same world history.
Conclusion # 2: If, on the other hand, our Universe isn’t part of an everlasting cycle, but quite the contrary is a phenomenon that has spontaneously arisen from nothing, it would have to mean that something/everything can spontaneously arise from nothing. Therefore other universes can also arise whenever “they like”, and the probability for another universe that has the exact same properties/physical laws as ours, to never arise, given that it has an infinite amount of time to arise again, must therefore equal zero.
Final conclusion: It seems very unlikely that none of the preceding conclusions are correct. Therefore, one must assume that the hypothesis of the eternal recurrence really is true.
Consequences of the eternal recurrence of the same: If the eternal recurrence is real, which the arguments above suggests it is, it means that every single conscious creature for ever will have to experience its existence as an endless, uninterrupted stream of being. The time it takes from the death of an individual being to the next time it incarnates, whether it is billions, quadrillions or a googolplex number of years, can neither way be experienced by that individual, since its consciousness doesn’t exist in the timespan between two incarnations.
Therefore, at the death of ones body, one wont be able to experience the enourmous span of time that lies between death and rebirth, and also wont have a clear understanding of time from the first unconscious or weakly conscious years as a baby, but will rather return to the first conscious moment of ones life.
Nothing can be remembered from the previous life, since memories are stored in the brain, and the brain and its consciousness is - as stated earlier - fragmented in the time between two incarnations.