It makes you extremely good at a very narrow thing, which is looking at a body and a story and noticing when they don’t agree.

She had done that in triage for three decades.

Woman, forty-four, “fell down the stairs.” Six healing rib fractures at different ages on the film.

Man, seventy-one, “confused,” brought in by a nephew who could not answer a single question about his medications and asked twice about the bank.

Girl, nineteen, “burned herself on the stove,” with a mark on her forearm in the exact shape of the underside of an iron.

You learn a specific skill, and the skill is this: you hold the story and the body up next to each other and you look at the seam.