So as we know Thaidakar and and Kelsier are the same person. And if you have read the Stormlight Archive we know that Thaidakar is considered a god and the leader of the Ghostbloods. But we also know that Kelsier is somehow trapped in Scadrial, but if he is a "God" or a Shard then wouldn't he be able to go to the other worlds and get the investiture himself? I am confused about this so please comment below and help me out.