Board Thread:Theories and Speculation/@comment-26894845-20151212061943

If rinnigan requires both Indra and Ashura’s chakra, then if Kakashi or Danzo or even Itachi had had some sort of say blood transfusion from Naruto could they have developed the rinnegan? They have the sharingan which is directly Indra's chakra, especially in the case of Itachi. I understand that it might have taken much more time than it did for Madara since he was the actual reincarnation, but if they could survive for the time it would take, would it be possible? 