Slowing aging is over rated. Ask a farmer or a gardener. Just when you think you have worked out how to keep things alive and looking healthy, the universe will throw things at you (from a very long ever growing list) that can change the story overnight.

Farmers and gardeners concern themselves with soil depletion and genetic diversity, so I'm not sure your point makes any sense.

What would a farmer or a gardener have to say about slow aging?

how to keep something (a plant) alive and how unpredictable it can be

nah I think we can solve it