Beautiful explanation. And to add to this, I would like to add something which isn't really related to tech but relates to the question. My Dad is a general ph

Beautiful explanation. And to add to this, I would like to add something which isn't really related to tech but relates to the question. My Dad is a general physician, and hence is a generalist. If you knew how Physicians' function you might know that he is the first person you need to see if and when you have a medical issue. And once he diagnoses the problem he might refer the case to an appropriate specialist.