Board Thread:Versus Debates/@comment-33229263-20171019104931/@comment-1512913-20171021200140

The only naturally awakened Rinnegan came from Hagoromo and possibly Momoshiki, his case is mysterious though. Madara and Sasuke didn't awaken it exactly naturally.

And I don't agree. Just because Hagoromo shared his power with Asura and Naruto and the two didn't get Rinnegan, doesn't mean that it was because they didn't have Sharingan/weren't Uchiha. I'm 100% certain that if Hagoromo were to want to, he would be able to give the Rinnegan even to Tenten or Rock Lee, it has nothing to do with the recipients' own powers or bloodline, rather what Hagoromo chooses to give. Chakra isn't a singular thing, think of one's chakra as a genome, with said chakra composed of many pieces each representing a different trait of the overall power, together acting as the whole. So even if you were to get a single gene specific to me, that wouldn't make you me, same with chakra.

Unlike Madara who had more or less same chakra as Hagoromo, Naruto and Sasuke don't have literally 'Hagoromo's chakra' as in 100% the same. Rather, Naruto has a fragment of Hagoromo's chakra which gave him Six Path Senjutsu, while Sasuke has a fragment of Hagoromo's chakra which gave him the Rinnegan.