Medicine as a science and as a profession has made great progress in the last 150 years. The infection epidemic was mastered by the invention of antibiotics, cardiovascular disease became treatable, and our knowledge of cancer advances rapidly. However, at the same time, tens of thousands of people die worldwide every year as a result of medical errors. “To err is human, building a safer healthcare system,” an influential report from the Institute of Medicine, estimates that in the US alone, every year, at least 44,000 and perhaps even 98,000 patients die as a result of medical errors. In short, more people die in a given year as a result of medical errors than from motor vehicle accidents, breast cancer, or acquired immunodeficiency syndrome.