Fearfully and wonderfully madeESSAY | Elegant molecular machines at the center of life belie Darwin’s theoryAt a recent conference, I watched a computer simulation of the most important machine in the world: ATP synthase. Without it, no life can exist. In the cells of every organism on Earth, from bluebird to blue whale, from amoeba to alfalfa to Aunt Millie, this molecular machine packages energy for cells to use, like AA batteries for so many game systems.No batteries, no game.I sat halfway back in the room on the center aisle, amid the hundred-odd scientists and casually dressed grad students watching...