Board Thread:Theories and Speculation/@comment-25122992-20161202191623/@comment-27924662-20161219091206

Thekillman wrote: I don't think anything like this was ever confirmed. Still, Itachi did say that using Genjutsu against someone with the same eyes is useless (And Obito/Kakashi proved that). genjutsu dispel depends on person's intelligence(particularly those without KKG) The faster they are able to perceive that pattern the more they are capable of perceiving the genjutsu and breaking it. Though it doesn't apply to all genjutsu, The ones made by sharingan are based on these patterns(the extra info obtained from Sharingan user's vision which makes them more convincing to the ones under genjutsu. for this reason it's practically impossible for regular sharingan to win against mangekyou(a superior eye), on this very same bases rinnegan should be immune to this genjutsu(being superior eye and all, also because the rinnegan user would easily break that pattern of thought by spotting the mistake) It's kind of obvious especially since no one tried to stop either nagato(while fighting itachi and kakashi), madara,Kaguya or sasuke with visual genjutsu. It's because even the time required to brake genjutsu won't even be a useful distraction against them.