O.K. so does anyone else have a serious problem with the revelation of the Recreance? I apologize if anyone else already posted this, I wanted to get this out whilst I was thinking about it, and will go back to read other posts afterwards. So we discover that the Recreance happened because the Knights discover that A. Humans are the voidbringers and B. Humans fled to Roshar after destroying their own world with surgebinding, something that Jasnah says 'she had suspected'.
The problem I have with this is that certainly Jasnah, and also all the ardents, and I am pretty certain it is common knowledge to virtually everyone, that the Radiants came AFTER the Heralds. The Heralds were the first to have surge binding powers from the Honorblades, and the Radiants copied those powers with their bonds to Spren. So the early pre-history of Roshar just doesn't hold up. How could humans have destroyed their world with Surgebinding before having had access to Surgebinding? Magic in the cosmere derives from investiture from the local shard, in this case Honor, which means that before coming to Roshar Humans couldn't possibly have been able to Surgebind. Even if Jasnah doesn't have access to all the information we do about the Cosmere and Investiture, surely she would have realized that she was putting the cart before the horse with saying surgebinding destroyed humanity's first world. This is made even more clear with our access to Hoid's parable about the humans having lived in the protected valley of Shinovar, and how they then 'climbed' out, thus giving them access to the Highstorm's Stormlight and the powers of Surgebinding (Which admittedly Jasnah doesn't have access to, but it was just the part that really cemented in my mind that something was really not right). Jasnah is a bit of a mary sue, and from the way she is written I think she should have discovered this error in logical thinking right away, but instead she is actually the one who puts the idea forward.
So, taking into account Jasnah's illness as a child, which drove her out of her mind, and the revelation of Radiant's being able to bond to storm twisted spren but still have access to Radiant powers, do people think that Jasnah may be bonded to a corrupted spen too, something that happened to her as a very young child, and she doesn't even realize it? And has it been subtly guiding her since childhood? Is JASNAH the one destined to be Odium's champion?
Just a few thoughts. Will continue to think about this for a while, but I only just finished Oathbringer and it will almost certainly take a second reading of Oathbringer (Also, Warbreaker) before I have any other thoughts about the book cemented in my head.