“I could go on forever. But our wealth and quality of life is substantially better now than it has ever been. In eighteen hundred, forty percent of children died before the age of five. Forty percent. We’ve invented indoor plumbing and created sewer systems. We have instant access to unlimited clean water. Instead of spending months crossing our country in covered wagons—a dangerous journey—we fly across in hours. We have tiny cell phones that take the place of an array of hardware that was required decades earlier. A handheld device that’s an all-in-one computer, camera, camcorder,
