Quote:
Originally Posted by Sindri
For customs to maintain genetic spread, I know that there are some mostly isolated settlements that have developed widespread genetic issues.
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Yes. In other words, while I think that we all see what Johnny1A.2 is getting at, we also know of actual examples where the problem was not dealt with as he says it should.
I believe that much will depend on the temporal horizon, too. If we are in one of a hundred generational spaceships, and once we reach the new planet in 100 solar years or so our grandsons will find the granddaughters of the other spaceships, then maybe for the time of our generation and our children's generation we won't care all that much about genetic problems. On the contrary, if we are all that's left of our species and the spaceship is going nowhere fast, then the concerns described by Johnny1A.2 will be high in our list of priorities.