I was just wondering is there any confirmation that Thaidakar is Kelsier? I love the theory but in a recent cosmere spoiler stream Brandon explained avatars and from what he said it seems pretty clear that only shards can have avatars, so if Mraize is to be believed he tells Shalan that Thaidakar only comes to Roshar in "avatar form" does this mean that Thaidakar is one of the shards?