When George Thorne walks into his medical practice in Austin Texas, he is greeted warmly by staff and makes friendly conversation about kids and pets. An ophthalmologist for thirty-plus years, he is quick to speak fondly of his patients, medical partners, and team. It’s clear he has loved his career. But at age 65, he recently decided to stop performing surgery and phase himself out of his practice altogether. “I’m not sure what’s on the other side of this,” he told me with a hint of anguish, “but it’s time.”