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I'm a physician, pathologist specifically. But also did a surgical internship. My dad is an engineer, my undergrad is in Physics and I spent years on ships in engineering and weapons departments. Yes, the room for error can be incredibly small. A surgeon might cut out a breast cancer that's 5 to 10 cm on a side. The margin, the distance between the cancer and the edge of the surgeon's incision, might be negative by 1 cell. The cancer might be 1 cell away from having been left in the patient's body. The room for error in medicine is in some ways disturbingly small, in others it is incredibly large. Factor of 10 errors are so common they are a standard outcome measure in trainee fatigue studies. Ask your SO about ACDF. Imagine driving screws essentially blindly, without tapped holes, a few millimeters away from a spinal nerve root, with an 8" torx driver. On 3 hours sleep, after standing on your feet for the last 7 hours. An engineer, hell, a carpenter, would have measured the system extensively, set up a jig, and spec'd the entire process, soup to nuts. From that perspective the margins for error, in absolute terms can be, and often are, enormous. Which is what lets them run on 3 hours of sleep for months. In that setting, sleep-deprived, no exercise, terrible food, compounded by relentless moral injury, yes, it seems like the margins are miniscule. But a good cabinet maker, electrician, or pharmacist takes more care in many aspects of their work, in absolute terms. |