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Why would survival of older individuals be in any way detrimental to the species' success? In the absence of aging, organisms living longer simply means that th
by tomp 11y ago
Why would survival of older individuals be in any way detrimental to the species' success? In the absence of aging, organisms living longer simply means that they are still sufficiently-well adapted to the environment. When the environment changes beyond what they can adapt to, they die off and (hopefully at least parts of) the new(er) generation will carry on.
- fossuser 11y agoSpeculating - older individuals take resources and even if they were continuing to reproduce advancement comes through successive generations of genetic mixing. It's probably advantageous for the species if an individual has a child (mixing up genetic code) and then that child has children while the parent dies. Otherwise you might have less biodiversity which may make the species less adaptable overtime (and maybe lose to another species with aging).
- dasil003 11y agoBecause we are social creatures and there are still limited resources. Older generations have outsized influence on the tribe based on their experience which can drag the rest down. For a contemporary example, consider the real estate bubble. When the bubble burst and everyone realized how badly the banks had screwed up, what happened? Well, everyone who owned a home worried about losing its value. The banks took some stock off the market to hide it, and all the leadership up to the president vowed to do everything possible to "maintain real estate values", even though the "value" was predicated on sub-prime mortgages that people couldn't actually afford. In this way, the older generation whose experience is tied to a particular environment exerts its influence in a way that damages the younger population. Being young and inexperienced means being adaptable but naive and inefficient, being old and wise means knowing how things work and a vested interest in keeping them that way.