You want your health care to work better so badly. You want to think you can change the system to suit your needs. But here's the thing: you can't change the whole system. You will sign up for a concierge practice. You will get 500 blood markers tested. This is not to say you won’t see some benefits from these investments: maybe a slicker interface to show your test results, or less time on hold, or more personalized advice. But the inevitable will happen. An unexpected corner of health care...