Europe is a collection of small countries. It's not coincidence that the economic powerhouse of Europe, Germany, is the most populated country. And since this is going quite off topic here is some wild idea: let's keep just a fraction of the current universities, like say 5 or 10%, force talent in Europe to concentrate in a few places, force mixing across nations. Actually this is already encouraged somehow but let's be more brutal. Just thinking out loud maybe an stupid idea.