Had this conversation with my dad that got me thinking. Secular civilizations with high intellectualism are often subject to eventual destruction because with knowledge comes the great understanding you don't matter. Looking at Europe, which is a knowledgeable place, I see a shrinking population and decline.
Then I look at the Middle East, or other places with less privilege and cultured intelligence and I see they have higher birth rates and better chances of surviving as a population. And they're the ignorant ones!