Theme 1 – Aging as an evolutionary adaptation that benefits the species
Many commenters argue that aging is a programmed process that removes older individuals, allowing genetic turnover and progress.
- “Aging could very well be a program to deal with the breakdown.” – irdc
- “There’s a balance between how often you want to recombine genetics and how long you want to be able to remember … having people grow old is almost certainly beneficial to the species.” – aeturnum
- “Getting rid of oldies seems like a reasonable way to move a species forward if natural selection is driving ‘forward’.” – jvanderbot
- “Progress is measured in funerals, not years. If everyone lived forever, nothing would ever change.” – _doctor_love
Theme 2 – Eliminating aging would create resource, innovation, and generational problems
Others warn that without death, older individuals would out‑compete the young, strain resources, and stall cultural or technological advancement.
- “If your reaction times, intelligence, etc are always good… it just seems like you’d out compete your kids and younger cohorts … stops genetic turnover.” – jvanderbot
- “Lack of experience is critical for risk taking… a species or civilization with too much memory will eventually wither away towards complete inaction and decay.” – anonporridge
- “OTOH same is true for wiping clean habits, prejudices and deeply held wrong beliefs. It’s said that science advances one funeral at a time.” – moffkalast
Theme 3 – Evidence from nature shows aging is not inevitable, pointing to mechanisms like damage accumulation or “cancer‑like” immortality
Several participants cite species with negligible senescence and discuss whether aging is a programmed script or simply accumulated damage.
- “The Immortal Jellyfish, and functionally the naked mole rat.” – gavinray (in response to manyatoms’s question)
- “Lobsters… do not get slower or weaker or even lose fertility as they age.” – emptybits
- “We have the ability to convert to becoming immortal… We call this cancer. … they will divide forever.” – asdff
- “Their risk of death does not increase after reaching adulthood… Humans … have their risks of death climb in 'old' age.” – aeturnum (footnote)
These three themes capture the dominant strands of the discussion: aging’s supposed evolutionary purpose, the drawbacks of a death‑free world, and the biological evidence that some organisms escape aging altogether.