The second main reason that the world will become more religious is that religious people have significantly more children, whereas the more irreligious and secular a population, the less often marriage happens and the smaller the families.69 This is true across the world and holds within every national group, within every educational level, and within every economic class. So, for example, it is not the case that religious people have more children because they are less educated. Religious people, when they become more educated and urban, continue to out produce their less religious
...more
