perhaps it shows more a lack of understanding of medical jargon for you?The word evolving was correct and I never argued with it. The word new is misleading.
I mean in some sense you could say there was never a new field of medicine if you look at it that way
you know psychiatry and neurology were the same field only a few decades ago - so "neurology" became a new field
Of course no one is saying brains didn't exist before that split
The thing is once something becomes a new sort of specialty or large area of medical research it becomes a new field