> that society has refused to accept. Source? This kinda sounds like crankery to me.

If you mean that you are unaware of society's prevailing attitudes, then consider https://en.wikipedia.org/wiki/He_Jiankui https://diyhpl.us/wiki/transcripts/makepeoplebetter/episode-... ctrl+f "hospital" and see his ethics manuscript which was censored ("retracted").

If you mean that you are unaware of substantial progress in germline genetic engineering, then there are many animal model research studies to consider. You can trivially search for them like "germline mouse longevity". Would they translate directly? Like other mouse science, probably not. Like all things, requires work and effort.