I talk about what ignorance means according to Meggan Waterson's analysis of the passage re: ignorance in the Gospel of Mary Magdalene.  I discuss how it doesn't use the standard meaning of ignorance (or at least how I think of ignorance).  Then I talk about how hard it is when you don't even know what you don't know.  I believe I have discussed this before, but how DO you ask a question about something that you don't even know exists?