Anyone who’s ever visited a doctor’s office knows that continuation of care can be difficult. The sheer scale of the medical system – and the number of patients doctors see in a given day – means that most general practitioners struggle to recall your name, never mind your case history. Even getting an appointment, particularly in the UK, involves pre-planning (sometimes a month in advance) or braving the phone lines as soon as the surgery opens to try and secure a precious emergency appointment. Health systems the world over struggle with the same problem: as the way we treat patients gets better, the way we record those treatments and how they move through the care system remains stuck in the mid-19th century. Eren Bali, CEO of Californian startup Carbon Health, thinks he’s got the remedy.