Rather than the current specialty system, where people train on certain types of ailments, often localized to age range and body part, I can think of many other ways to subdivide medicine. Here are the worst:
- Alphabetically: āOh, I can give you the Measles and Mumps shot, but Iām not really competent to mess with Rubella.ā
- By date of discovery: āI may just be a specialist in early colonial medicine, but I really think we should amputate. Drink some rum, Iām going to go borrow a hacksaw.ā
- By ethnicity: āIām sorry, Iām only trained in Pacific Islanders. I hear treating broken bones is similar for your group, but Iām just not comfortable with seeing you.ā
- By non-lawlike, non projectable predicates: āListen, I know all my training was before 2000 and all of my work has been after, but you really just look orellow to me, not yorange. So it canāt be jaundiceā¦ā

Ironically, he didn't see it coming.