You're in the park going for a run, and your wearable device is tracking your performance, your heart rate, and various other aspects of your physical health. Pooling this data over a period of time gives you a strong idea about your physical fitness. Combine that data with your diet, your genetic data, and your electronic medical records, and you can paint a comprehensive picture of your physical health.
Making sense of this data, together with any symptoms you volunteer, is increasingly the preserve of autonomous technology that can absorb vast quantities of data at a time when doctors report inputting data into electronic medical records as a key source of stress. Would you trust the diagnoses of such autonomous systems or would you prefer to have a human doctor have the ultimate say in the recommendations you receive?