We measure many things that have no worth to patients, while a lot of what individuals do worth, including our attention, remains unmeasurable. Why, Wachter asks, do we do nothing very similar in health care? In a moving passage, Wachter speaks with a famous surgeon who once spent his evenings before surgery reading his notes on another day’s patients. No longer. His notes have already been rendered homogeneous by the tyranny of clicks and auto-populated fields uselessly. I cannot also picture their faces. The blanks on our screens could be filled with words, but the procedure of understanding can’t be auto-populated.The core treatment stage lasted for six months, and patients could transition into an open-ended extension of the procedure period. Everolimus was administered orally at a starting daily dose of 3.0 mg per square meter of body-surface area area and was subsequently adjusted to attain a whole-blood trough concentration of 5 to 15 ng of the medication per milliliter. Dosages were withheld or were reduced by 25 percent in patients who had severe side effects at the current dose. The principal efficacy end point was the change in the quantity of subependymal giant-cell astrocytomas during the core 6-month treatment phase.