We no longer feel uncomfortable in the presence of such vast intricacy. Even still, our minds want a hand behind the curtain—someone or something assigned to make the gears turn. But it needn’t be an either/or demand. Creation and evolution need not be enemies in the same universe. You can look at the complexity—at this long chain of contingency, chemistry, inheritance, and adaptation—and still hold onto the sense that the whole undertaking is so vast...