Board Thread:Naruto Discussions/@comment-36221354-20180717114536/@comment-36006024-20180717171349

Elveonora wrote: It's not true. There is Momoshiki whose Rinnegan predates Hagoromo in all likelihood and there is no evidence of Sharingan. Just because Hagoromo had the Rinnegan and Indra the Sharingan, people assume Asura's chakra upgrades the Sharingan into Rinnegan, except it doesn't, otherwise Obito and Danzo would have awakened the Rinnegan.

In other words, the Sharingan isn't a prerequisite of the Rinnegan.

Yeah but you could argue the case that its because they only have Ashura's chakra and not Indra's.

im not saying that just anyone with a sharingan can unlock rinnegan...rinnegan can only be unlocked by recreating Hagoromo's chakra as stated buy hagoromo and Black Zetsu themselves, but i do believe that its a natural progression for Indra's Sharingan to "evolve" into the rinnegan. if they were two sperate dojustu's couldn't you make the argument that you could have one in each eye? Kishimoto himself said that a Uchiha/Hyuga mix would have 1 byakugan and 1 sharingan, and those are sibling dojustu

Just an observation