Attention, after all, is ultimately a zero-sum game. [fact]
At the dawn of the attention industries, then, religion was still, in a very real sense, the incumbent operation, the only large-scale human endeavor designed to capture attention and use it. But over the twentieth century, organized religion, which had weathered the doubts raised by the Enlightenment, would prove vulnerable to other claims on and uses for attention. Despite the promise of eternal life, faith in the West declined and has continued to do so, never faster than in the twenty-first century. Offering new consolations and strange gods of their own, the commercial rivals for human attention must surely figure into this decline. Attention, after all, is ultimately a zero-sum game.
Tim Wu, The Attention Merchants, loc. 84