Secularization or Religious Revival?

Is religion in decline? What is its relationship to secularization? One argument is that modernisation differentiates society, leading to the shrinking and relativization of religion. Another view is that a diversity of religious worldviews strengthens religion: religion only declines when suppliers become complacent and monopolistic. Finally, others draw attention to the importance of demography and nationalism in spurring religious revival. I also consider how modernity may be boosting fundamentalist variants of religion.