I'm going to devote this thread to people who want to try to flesh out some of their ideas. Although It is possible to disprove theories it is often difficult to do so in general. So if you would like to put an idea out you have been working on and try to find if it has holes in it just add your theory and participate in the discussion.
My theory I'll put forward is my favorite Murphy=Mab. It requires time travel but the biggest hole really comes from woj that mab and titania are 'actual' twin sisters. And this came in response to a question about the biological relationships of ... so, aside from this woj and that Murphy would have, knowing her past history, still named her children maeve and Marissa. And, she would have known about an upcoming contamination of maeve but despite all of her power was unable to stop nemesis getting to her.
So can you think of anything within book and not woj that prohibits ttmurphy from becoming mab, or that makes it very unlikely.
I guess the point about how difficult it is to change the past, etc is one huge point against but of course we will have a tt book so that is a point in favor.
This thread isn't a Murphy/mab thread. It is a disproof thread so others pose similar questions for their theory or idea.