[StanislavPetrov]

>There is 1) survival of the fittest and 2) random genetic mutation.

There is 1) survival of the fittest and 2) random genetic mutation and 3) survival of the luckiest.

You could be part of the fittest, most well-evolved tribe of people on the planet that gets hit by a meteor which completely obliterates your entire lineage, while a much less "fit" group of people on the other side of the world soldiers on. These survivors didn't survive the meteor strike because of any inherent strengths or benefits of evolution or genetic mutation, but they are the only ones left out of sheer chance.