The Evolution of Anti-Natal Norms

Almost every very old religion is very pro-natal. Child mortality collapsed, which suddenly meant there really isn't a fitness cost. We reduced the fitness cost by decreasing child death so much that anti-natal norms could feed on themselves and sort of propagate to an extreme. But we're not yet at that shrinkage point because like low fertility is not like, we just haven't gotten there yet. The religious will begin to out-compete the secular and so the future will be more religious.