It would take a while to fully explain but I'll just let you know that more medical research money,public and private,flows into Boston than into any other city on earth.
I have some knowledge of what *real* medical research looks like.Walk through the hallways of research labs at the schools I've mentioned and you're tripping over Nobel Prize winners (and yes,the Nobel Prize in Medicine *does* mean something). The hallways of the University of Florence? Not so much.
Just think Mercedes vs Fiat.
Mercedes is German but I understand your point, thank you.