Why do we age?
In: Biology
Imagine two life forms. One is a complex life form that doesn’t die. One is a complex life form that does.
As environmental conditions change, the life form that does die will slowly evolve to adapt to those changing conditions. On the other hand, the undying life form will not. Over many, many years, this means the mortal life form will simply out-compete the immortal one.
So either you have a life form adapted for an environment that doesn’t change (much/in important ways) or you’re going to need death.
That death can either come via aging and ‘natural causes’ or it can come via the more direct approach of murder (by other life forms or the life form’s descendants).
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