“A Scandinavian psychologist colleague of mine who is an atheist told me that his three-year-old daughter recently walked up to him and said, ‘God is everywhere all of the time.’ He and his wife couldn’t figure out where she’d gotten that idea from,” says Justin Barrett, director of the Thrive Center for Human Development at Fuller Theological Seminary in Pasadena, California, and author of Born Believers. “For his daughter, god was an elderly woman, so you know she didn’t get it from the Lutheran church.”

For all of these reasons, many scholars believe that religion arose as “a byproduct of our cognitive disposition”, says Robert McCauley, director of the Center for Mind, Brain and Culture at Emory University in Atlanta, Georgia, and author of Why Religion Is Natural and Science Is Not. “Religions are cultural arrangements that evolved to engage and exploit these natural capacities in humans.”