Philip Jenkins begs to differ. But first a word on the discussion that prompts his dissent. Over the years, FIRST THINGS has devoted substantial attention to the thesis that Europe is a dying continent. In the fine phrase of David Hart, Europe is dying of “metaphysical boredom.” We were among the first to give a sympathetic hearing to the work of Bat Y’eor, who argues that Europe is, probably irreversibly, on the way to becoming “Eurabia.” Catastrophically low birth rates, combined with a burgeoning Muslim population, led the sage Bernard Lewis to comment in 2004: “Current trends show that Europe...