re: Crackpot ASOIAF Theories SPOILERS

When I first brought up Tyrion Targaryen thy, everyone took issue with Tywin and its effect on his character. I guess I don't get that. In the grand scope of the story, what difference would it make if Tywin was "the evil stepfather" -along with the other important hats he wears? How does this cuckolding change his relevance to the series? It doesn't. It actually adds some humanity to him via sympathy for him, and also rationalize his need for (the appearance of) total control.

However, I think Tyrion Targ is a red herring. The fact he has two different colored eyes is just too much-if it's what Martin wants us to suspect.

I really think its one of the twins, but not both. By definition, fraternal twins could be by two different fathers. Aerys wouldn't have waited that long to get at Joanna, if he did at all.

Of the two, Jaime would be the most "holy shite" choice, as he is the ONE Tywin would never suspect, or accept. His past "king(kin)slaying" explains his cursed recent history.

Now, in my theory, Tywin doesnt know Aerys had contact w Joanna, suspects, maybe, but be it rape or seduction or even affair in truth doesn't matter...Tywin only sees it as rape. Tywin still never suspects any of his kids aren't his...until Tyrion is born. His newborn's deformity just couldn't have come from him, and in conjunction with Joanna's death, affirms his suspicions after the fact. He could not kill the child, or even mention his suspicions, as Tywin would not allow such scandal at Casterly Rock. Instead he took it out on Tyrion in more devious ways ( master of sewers, treatment of Tysha, etc) -His true son and lawful heir.

None of the kids ever knew or suspected Tywin wasn't their father.

Last part of my thy is Jon Arryn maybe knew more than anyone suspected, lending several levels of interperetation to his phrase "The seed is strong".