In the ongoing negotiation between what medicine can perceive and what it ought to pursue, a Jerusalem research team has offered a quiet corrective: seeing more is not always the same as doing better. Their study of post-surgical kidney stone imaging found that CT scans, though measurably more sensitive than ultrasound, altered clinical care in only a small fraction of patients — raising the enduring question of whether superior detection serves the patient or merely the instrument. The findings invite clinicians to weigh the burden of radiation and cost against the rarity of actionable discov