I have talked about this before but I can't stop thinking about it.
I really do believe that the reason Desmond is so special is cause he is the son Of Jacob.
Every other character has Daddy problems. It's a huge theme in lost and we know of all their parent problems. But not a drop of Desmonds other then he had to take care of his brothers. We don't know anything of them one bit, his parents that is.
I was thinking may Llana for a bit cause her and Jacob seemed to have a more intimate relationship. She looked happy to see him and she said nice to see you again, which means they know each other. But I don't think the heritage of Llana supports this.
What's everyone think?