 What excites me is the opportunity to tailor medicine to the very specific needs of an individual. We're learning a lot about how different the common diseases are, hypertension, diabetes, cancer. We're learning about how those treatments behave differently in different people. And now we're getting the computing power and the access to data that allow us to make sure that we're putting together the exact right plan of action for each and every person in response to what their priorities are.