3 ms·

> instantaneous change in the genetics of a population though. How exactly, given that a generational time for humans is about 20 years?

• maxerickson 10y ago
  Say 5 people out of 25 have tails at time=0. One day, the 20 without tails kill the 5 with tails. So at time=0, the prevalence of tails is 20%. At time=1 day the prevalence of tails is 0%. The remaining members of the population may still have the genes to make a tail, but no one currently has a tail. If tails are a dominant trait, they won't. If tails are a recessive trait, a couple generations of killing babies with tails will do quite a lot to further diminish the prevalence of the trait.
  • lngnmn 10y ago
    Do you understand the fundamental difference between a simulation according to some primitive model and reality?
    • maxerickson 10y ago
      Probably not. I used a cartoonish model to starkly illustrate the possibility of the effect. That doesn't mean I think reality would have such stark effects. It doesn't mean I think I've proved the effect occurs in reality.