Accepting immigrants is a pretty good insurance against your civilization going extinct, in fact. More diversity, more innovation.
Sure, so the inheritors of my civilization might share like, only 99.95% of my DNA instead of 99.99%, but so what?
Sure, so the inheritors of my civilization might share like, only 99.95% of my DNA instead of 99.99%, but so what?
Yeah, it only gets replaced.
> More diversity, more innovation.
Sure, sure.