Brief and simplified discernment on animation, re-animation, longevity, and eternity to support the global community inspirations, aspirations, and yearnings. And the scientific quest. And as well as past discernments:
Animation, re-animation, longevity, and eternity depend on or are functions of natural topology, structure, function, process, mechanism, order. And complexity (and are referring to living things in this brief and simplified discernment). Based on known empirical data and empirical science, living things can be replicated or cloned but not revive even the most simple living things. As examples:
1.0 Even through viral is not considered as a living thing by itself. It is one of the simplest living thing in a host. And cannot be revived once died even in the host.
2.0 Organisms and species can be animated, re-animated, replicated, and cloned (even after centuries and millenniums for organisms depending on the types. However, they do not last for aeon) but not revived once died. Animation can be considered as conditioned hibernate.
3.0 And which also applied in diverse ways to far more complex and evolved species.
For example, human species is not only about the extreme complexity of chemistry, biology, and physics. And their interactions as well as causalities. Rather, also about far beyond known physical world complexity of the many sentient composite body-mind system (i.e. intertwined and entangled as parts of sum of parts of the greater whole) or basically interaction with local and non-local cosmos. Furthermore, the complexity is even far out (far beyond known physical world complexity) of this world since once the subtle body-mind or emerging spirit-soul potentialities of possibilities of the many sentient composite is disentangled from the many sentient composite body-mind system, it is disentangled forever. A simple way of stating is impossibility upon impossibility ... upon impossibility. However, by knowing such or nature's epistemic and ontic, can help advance the sciences and practices of longevity, well being, and betterment for all in the known physical world. And beyond.
Furthermore, replication and cloning would result in similar entities but not the exact past entities. Similarly, more evolved or complex species can also be animated, re-animated, and cloned; but cannot be revived once died as mentioned.
And as such, the best. And only way to optimize longevity in the known physical world. And beyond (including meaningful eternity potential) is to know nature by knowing oneself (i.e. individual and the collective https://www.epistemologyontologyfoundationinstitute.org/nature-decode/on-knowing-the-whole-through-its-fractal-parts). A simple way of saying is optimization through processes and mechanisms embodied and facilitated by nature as parts of nature. Another way of saying is nurture, develop, and practice the essence and nature of being through universal process of being and becoming basing on the essence, nature, and ground of being (and becoming). And the essence, nature, and ground of nature (and becoming) are the best. And only ways of optimizing meaningful longevity in the known physical world. And meaningful eternity potential beyond.
Nothing can last for long or even aeon in the known physical world, much less eternity. And as such, since sentient's epistemic and ontic are created of or from this known physical world, they do not have longevity nor eternity potentials. And which also implied not embedded and embodied with affects and causalities (for good or bad) of or process and mechanism for generational bio-transmutation, transformation, and evolution (i.e. individual and collective process of being and becoming). And which when optimized, would further better individual and collective in the known physical world. And beyond. Another way of saying is only true nature epistemic and ontic is forever or eternal. For examples, machines can have all kind of problems. And would not last long.
Epistemology of Life and Ontology of Existence Foundation and Institute