Got nearly 3,000 words of backstory today.  Again, getting to know the characters.  I suspect more of the rest of this 50k will be backstory.  They’ll be easy to pull out, because I’m using Tigger, Mallory’s cat, as the POV character for all the backstory.  It isn’t really Tigger telling me this, but I suppose you could look at it that way.  In Scrivener, those files will be easy to shift to the non-novel Research area when the time is right.  Meaning, the clean up of garbage from the NaNo novel is easier than ever.