Board Thread:Theories and Speculation/@comment-33256714-20171005000302/@comment-734582-20171007095953

Indk21 wrote: I don't know where author did get this information but it was never said in the manga (maybe in anime only or databook) that byakugan gives the same ability as sharingan (fallowing high-speed movment and better react time). So that's why i don't take it as reliable information. I don't think the information is being interpreted right. The Byakugan does give the ability to follow high-speed movement. Not like the Sharingan, which is where the confusion comes from.

The byakugan's 360 vision and X-ray vision simply means that the target is never out of sight. Neji can understand what's happening because he's observing literally every part of it. the sharingan decodes and records everything it sees, no matter how fast, and uses that to predict movement. On the other hand, the Byakugan uses X-ray vision and 360 vision to always keep the target in sight. Also note that while the Byakugan can definitely see something, it doesn't mean the user understands, while the Sharingan can definitely see AND understand something, but can't keep an eye on everything interesting (e.g. Sasuke couldn't keep up with Bee's attacks at close-range, as the attacks were outside vision half the time)

We don't know how high the ceiling is for the Byakugan's ability to see fast movement, but from the reference given it's clear that it can match basic Sharingan capacity. Neji could follow Naruto's attacks during the Chunin fights, and he was moving very fast.

Vladosaurus wrote: False I believe it's a misconception that the Rinnegan is an evolved sharingan. It's not. You don't require a sharingan to obtain a rinnegan. Kabuto's words are misdirectly as well. Also, the rinnegan does not posses sharingan abilities. The only rinnegan who ever possessed sharingan abilities is Sasuke's, and that symbolised by it's tomoes, and that's about it. Yea. Black Zetsu, who i think we can trust as the definitive authority here, made no specific mention to the Uchiha or the Sharingan in order to awaken the Rinnegan. he approached either transmigrant, so it would seem to me that no specific conditions are needed.

Secondly, Sasuke's eye in comparison to Madara's shows clearly that the Rinnegan and Sharingan are separate dojutsu. Sasuke's eye is able to manifest both of them at the same time, which is unique to him. A step up to Rinne Sharingan, if you would, though it clearly lacks whatever KKG makes it a single eye.

Kabuto's ideas were understandable though, considering that Madara awoke the Rinnegan and was known for his powerful Sharingan. He was correct in his assessments there, he just didn't know it could be generalized further.