Comment by tsimionescu

> No matter what standard of care you receive, senescence will gradually kill you even with therapies or treatments to slow it.

That doesn't mean that it can't be entirely reversed. We already know that senescence is not a completely required part of life itself, or even of eukaryotic and/or multicellular organisms - as we have known examples of organisms that don't experience it. For example, jellyfish don't experience senescence (they go through a revolving cycle of polyp - jellyfish that can go on forever as far as we can tell). And even if true permanence is out of reach, we also know of animals that live for hundreds of years, and of plants and fungi that live for thousands or tens of thousands of years.

So, having a way to make something like a human (though possibly quite different from what we call a human, to be fair) live for at least a few hundred years if not much more is a very difficult but certainly solvable bioengeneering problem, not some philosophically impossible feat.