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Isn't MD for..like.. medical doctors ? If he's an MD but without a medical degree (which I guess is the case), then what's the difference betweeen MD, PHD or 'professor' ??
An MD is a medical degree. It's possible to have an MD but not practice medicine professionally in the same way someone can earn a law degree (a JD) but choose to not be a practicing lawyer. "Professor" is a academic title for people at a university or advanced teaching institution. Most professors do have terminal degrees in their respective fields like PhDs, MDs, or JDs, so you could also call a Professor with a Ph…
MD is higher because anyone now can be professor and make research but to have a renaissance make like fokas a doctor first then a mathematician is a great thing