I've watched through BSG I think 3 times over the years, and I've come to the conclusion that I don't think she was strictly human, in the normal sense. I thin

I've watched through BSG I think 3 times over the years, and I've come to the conclusion that I don't think she was strictly human, in the normal sense. I think from day one of her existence, she was a kind of power on the same level as Baltar and Six's angelic alter egos. Watching it the first time when it originally aired, I had thought she was one of the Five (even though part of me thought that was too obvious, and a cop out)... and then the fifth member was revealed and it wasn't her. Clearly the writers had given her a role beyond merely human or Cylon, something part of the grand scheme of God that Messenger/Head Baltar and Six were part of.