attending surgeons say that what’s most important to them is finding people who are conscientious, industrious, and boneheaded enough to stick at practicing this one difficult thing day and night for years on end. As one professor of surgery put it to me, given a choice between a Ph.D. who had painstakingly cloned a gene and a talented sculptor, he’d pick the Ph.D. every time. Sure, he said, he’d bet on the sculptor being more physically talented; but he’d bet on the Ph.D. being less “flaky.” And in the end that matters more. Skill, surgeons believe, can be taught; tenacity cannot. It’s an odd approach to recruitment, but it continues all the way up the ranks, even in top surgery departments. They take minions with no experience in surgery, spend years training them, and then take most of their faculty from these same homegrown ranks.
And it works.

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Surgeons, as a group, adhere to a curious egalitarianism. They believe in practice, not talent. People often assume that you have to have great hands to become a surgeon, but it’s not true. When I interviewed to get into surgery programs, no one made me sew or take a dexterity test or checked if my hands were steady. You do not even need all ten fingers to be accepted. To be sure, talent helps. Professors say every two or three years they’ll see someone truly gifted come through a program — someone who picks up complex manual skills unusually quickly, sees the operative field as a whole, notices trouble before it happens. Nonetheless, attending surgeons say that what’s most important to them is finding people who are conscientious, industrious, and boneheaded enough to stick at practicing this one difficult thing day and night for years on end. As one professor of surgery put it to me, given a choice between a Ph.D. who had painstakingly cloned a gene and a talented sculptor, he’d pick the Ph.D. every time. Sure, he said, he’d bet on the sculptor being more physically talented; but he’d bet on the Ph.D. being less “flaky.” And in the end that matters more. Skill, surgeons believe, can be taught; tenacity cannot.

"People underestimate the importance of dilligence as a virtue. No doubt it has something to do with how supremely mundane it seems. It is defined as "the constant and earnest effort to accomplish what is undertaken."... Understood, however, as the prerequisite of great accomplishment, diligence stands as one of the most difficult challenges facing any group of people who take on tasks of risk and consequence. It sets a high, seemingly impossible, expectation for performance and human behavior."

We don’t like checklists. They can be painstaking. They’re not much fun. But I don’t think the issue here is mere laziness. There’s something deeper, more visceral going on when people walk away not only from saving lives but from making money. It somehow feels beneath us to use a checklist, an embarrassment. It runs counter to deeply held beliefs about how the truly great among us — those we aspire to be — handle situations of high stakes and complexity. The truly great are daring. They improvise. They do not have protocols and checklists. Maybe our idea of heroism needs updating.

Block has a list of questions that she aims to cover with sick patients in the time before decisions have to be made: What do they understand their prognosis to be, what are their concerns about what lies ahead, what kinds of trade-offs are they willing to make, how do they want to spend their time if their health worsens, who do they want to make decisions if they can’t? A decade

Even our brains shrink: at the age of thirty, the brain is a three-pound organ that barely fits inside the skull; by our seventies, gray-matter loss leaves almost an inch of spare room. That’s why elderly people like my grandfather are so much more prone to cerebral bleeding after a blow to the head — the brain actually rattles around inside. The earliest portions to shrink are generally the frontal lobes, which govern judgment and planning, and the hippocampus, where memory is organized. As a consequence, memory and the ability to gather and weigh multiple ideas — to multitask — peaks in midlife and then gradually declines. Processing speeds start decreasing well before age forty (which may be why mathematicians and physicists commonly do their best work in their youth).

During the Second World War, for example, Lieutenant Colonel Henry K. Beecher conducted a classic study of men with serious battlefield injuries. In the Cartesian view, the degree of injury ought to determine the degree of pain, rather like a dial controlling volume. Yet 58 percent of the men — men with compound fractures, gunshot wounds, torn limbs — reported only slight pain or no pain at all. Just 27 percent of the men felt enough pain to request pain medication, although such wounds routinely require narcotics in civilians. Clearly, something that was going on in their minds — Beecher thought they were overjoyed to have escaped alive from the battlefield — counteracted the signals sent by their injuries. Pain was becoming recognized as far more complex than a one-way transmission from injury to “ouch.