Wouldn't the pagerank algorithm work as a first pas for notability? I can guarantee that more (and more important) wiki pages will link to Turing's page than mine.
There would still be policing, but now it's of the form "This article on Bletchley Park shouldn't link to this random guy's page" which is more objective than giving me a notability score.
I like the idea of using some mechanism like the pagerank algorithm for notability but i worry that those random almost-obscure/niche academic subjects may not pass it. When i was in college i found that wikipedia was really helpful for getting background/links to certain lesser-known topics that would pop up in reading assignments...i haven't contributed much to wikipedia however so i don't know how they determine notability of those types of pages
There would still be policing, but now it's of the form "This article on Bletchley Park shouldn't link to this random guy's page" which is more objective than giving me a notability score.