I am very curious as to your objections why eternal youthfulness would not one day (probably far into the future) be feasible.
Natural evolution does not "want" eternal organisms, not even eternal species; it "wants" life to constantly evolve.
Death is a feature, not a bug. It evolved in the last billion years together with sex and reproduction, as a way to clear up space for new individuals.
Maybe one day that "solution" will no longer be necessary, because we will have infinitely expandable space and resources for everyone to live forever. But the fact is that humans inherited death from their ancestors, and have evolved their body and society around it.
Everything in our body and mind was designed and adapted by evolution assuming a finite life of ~80 years plus or minus 20 (rough guesses). Total planned obsolescence.
Human lifespan has evolved to be among the longest among mammals, actually, because that was needed by our nature and life cycle: a bigger brain takes much longer to program, so we need 14-20 years of learning before we are ready to leave our family and start a new one.
And we live for many years after we are no longer needed as parents, because we still have some use as teachers, babysitters, sentinels, etc..
Aging is the decomissioning of body and mind parts that are not intended to be used beyond a certain stage in life. Our very desires and values change, because we are meant to have different roles in society at each stage in life.
If we were to live forever, we could not be the same humans as we are today, we would have to change our body
and mind and become something quite different.
If a dinosaur could wish for eternal life, would it want to evolve to a monkey, or to be an eternal dinosaur?
Does a child of five really wish to become an adult? Or just do the things that only adults can do, while remaining a child?
Sorry for the off-topic everybody, but it's not like the bitcoin price is doing anything interesting
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1) You provide no arguments that eternal youthfulness is not feasible, you only state that it is indesirable for a species. Personally, I think it is very desirable for an individual, and probably for society as well.
2) Aging is not a 'planned removal of individuals'. Please describe how the gradual loss of strength, memory functions, etc.. is evolutionary positive. How does the presence of elderly people that need help for everything benefit society? Wouldn't evolution program death in a way that individuals suddenly drop dead after a certain time?
Your reasonings sound like rationalisations to calm the mind to me ("I shouldn't worry, everything is as it should be, everything has a reason")
Sure, there are some genes that can be deleted for a longer life in certain species, but these are generally trade-offs versus other properties (for example lower activity and metabolism).
I do believe that the evolutionary need for a long-living individual wasn't very high (partially because most individuals died much sooner), so our metabolic programming isn't perfected to keep cells functioning forever, resulting in wear and tear.