My best theory is this: When we are children, we invent these detailed imaginary worlds that the child psychologists call ‘paracosms.’ These landscapes, sometimes complete with imaginary beasts, heroes and laws, help us orient ourselves in reality. They are structured mental communities that help us understand the wider world.

We carry this need for paracosms into adulthood. It’s a paradox that the artists who have the widest global purchase are also the ones who have created the most local and distinctive story landscapes. Millions of people around the world are ferociously attached to Tupac Shakur’s version of Compton or J.K. Rowling’s version of a British boarding school or Downton Abbey’s or Brideshead Revisited’s version of an Edwardian estate.

Millions of people know the contours of these remote landscapes, their typical characters, story lines, corruptions and challenges. If you build a passionate and highly localized moral landscape, people will come.