We are pretty sure from WOBs that Autonomy is somehow involved in what is happening on Sel, and that Jaddeth is most likely one of her avatars. I was thinking about what we know about her avatars and how they work. In some cases it seems she just forms them out of her own investiture, which was probably how she formed the Sand Lord on Taldain. But we also know that she can make other beings into her avatars, like Telsin, and Patji. My theory is that she can use other masses of investiture and infect them with her own to make an avatar, which I think was what happened with Patji, though Patji was probably intelligent on its own, possibly similar to a spren. I think that Autonomy's goals on Sel are directly related to the Dor. Fjorden's beliefs are related to Autonomy, but they are also undoubtably influenced by Dominion, and perhaps some Devotion as well. I believe that Autonomy is attempting to form an avatar, Jaddeth, out of the Dor itself. This would effectively be creating a dishardic being under her control that does not interfere with her main self and therefore would not alter her intent, which I think she would be opposed to. But by creating Jaddeth, she could become one of the most powerful beings in the cosmere by extension. We know she had involvement in the splintering of Devotion and Dominion before, so this may even be a plan that she has been working towards for thousands of years. What do you guys think?