Board Thread:Naruto Discussions/@comment-34436445-20180703141210/@comment-36351381-20180729200010

Well he doesn't have alot of it then since he can only handle a single Rinnegan. All of it probably went to his brain, not body ig. And it just boosted his left eye up to the Rinnegan ig. Come to think of it, the Rinnegan is, in a sense, a nature energy styled dojutsu (you know, to myself, I call them the Enlightened eyes you know?because you've achieved that state, or a state of Godhood when you come into possession of those eyes, and the ripple pattern gives that impression to). For example, when Sasuke faced off against Naruto in his Orochimaru cursed sealed, snake, nature energy based-sage chakra, Dragon Sage mode, his Chidori (when unleashed, at that time) enhanced to a black state. Just like when Sasuke received the Rinnegan and unleashed his Chidori, vs Hagoromo level Madara. It to enhanced to a black state. So ig we can say that this black state Chidori shows clear indication of nature energy being involved. So my friend ig you're right in saying that, "Sasuke does have Asura's chakra" (a little bit of it though, most likely; and it all went to his brain) and I can agree with you.

Or, looking at it from another view point. The sage probably just tried to boost Sasuke's mental energy up to his level but failed as a result of Sasuke lacking that necessary physical vitality. Thus end resulting in a single Rinnegan. Lol, here i go contradicting and repeating myself again.