User blog comment:Theraven22/bankai's that should be revealed/@comment-44061-20100330160357

There seems to be some series misunderstanding of facts and words here. Shunsui is never stated to be a Genius. The only current Geniuses noted are Gin and Hitsugaya, whose battle data is matched with Hitsugaya maintaining more skill but that is not the full comprehension of ones ability just a referencing point. Yamamoto is stated as the most powerful Shinigami period seemingly only rivaled by Aizen (though thats still questionable without knowing if he is unaided in his abilities). The Hogyoku is created by Urahara and the focal point of the story line. The Sōkyoku is a weapon used for executions not for fighting, no one knows who created it and Ukitake and Shunsui are the ones who destroyed it to save Rukia. Also it has been affirmed that the Urahara couldn't destroy the Hogyoku thats why he placed it in Rukia to seal it away as she became human in that special reiatsu suppressing Gigai. The only one believed to have the power to destroy the Hogyoku is Orihime.