Board Thread:Theories and Speculation/@comment-25302335-20150914182027/@comment-4912646-20150915231334

The problem with the resealing theory is that Hagoromo himself said he and his brother defeated the beast and sealed it inside him. Yet Black Zetsu said (and in fact showed) the brothers sealing the beast in the moon instead. But even the new version of the story says Hagoromo divided up the beast's chakra inside him, so the only way it all fits is if the Six Paths Chibaku Tensei divided the beast into body and chakra, and only the chakra was sealed within Hagoromo. And that means Kurama was wrong for some reason.