Waton, nice thoughts!
We cannot understand everything that is happening. One well-known aspect of quantum physics is that certain observations cannot even be predicted absolutely. Instead, there is a range of possible observations each with a different probability. One mainstream explanation, the “many-worlds” interpretation, states that each of these possible observations corresponds to a different universe (the ‘multiverse’). There could be infinite number of universes, and everything that could possibly happen occurs in some universe. Death does not exist in any real sense in these scenarios. All possible universes exist simultaneously, regardless of what happens in any of them. Although individual bodies are destined to self-destruct, the alive feeling – the conscious energy - doesn’t go away at death. One of the surest axioms of science is that energy never dies; it can neither be created nor destroyed. But does this energy transcend from one world to the other? The fact that it made its descent means it can make its ascent too! If it is done once, what is the difficulty in repeating it? That means death does not exist in a timeless, spaceless world. In the end, even Einstein admitted, “Now Besso” (an old friend) “has departed from this strange world a little ahead of me. People like us…know that the distinction between past, present, and future is only a stubbornly persistent illusion.” Immortality doesn’t mean a perpetual existence in time without end, but rather resides outside of time altogether.