"Wars still constitute competition within the species ."
"The question is : To what degree do wars cull out particular genes as opposed to ideas ? Another thing to consider is not who is getting killed , but who is being born . Unless , something is done about the niche , it will just get filled again by whoever was decimated . Compare : Germans ( hypothetically ) settling in the Ukraine versus the US bombing of Hiroshima ( which was not then settled by the US ) . Consistent genetic pressure is really key ."
"constitute competition within the species ."
"Consistent genetic pressure is really key ."