Board Thread:Naruto Discussions/@comment-4271790-20141016102132/@comment-25152328-20141021123730

Well I mean, they say that the brain is still active for like 10 minutes after death, so I thought in his mind he was going through memories, found Rin, and remembered how useless Kakashi was so using that last 10 minutes of consciousness, used kamui to send his chakra into Kakashi, and then gave him the last of his power as he was still gonna be conscious for like 7 minutes, with Kakashi double sharinganing and susano'oing and such, and then when Obito's conscious finally left, he took both sharingan with him