Board Thread:Versus Debates/@comment-26127155-20150807124703/@comment-734582-20150807181018

Lion chakra wrote: Well that really makes the Jutsu not perfect. If any person could come by outside of the control of the Genjutsu and say "here Mifune, have a Snickers. You start agreeing with Danzo when you are hungry (or under Koto)"

And so that end that "ultimate Genjutsu"....? But then again it makes sense. According to the wiki it can be detected by a third person and so prevented. But it seems to me that if it truly adds false experiences, it would still be hard to beat. It's not a perfect jutsu (No jutsu is) but it's pretty damn close if it takes so much effort just to beat it.

It seems to me that this supports the idea that contradicting experiences (e.g. someone telling you you're under genjutsu) can break the delicate state of Koto, yet it can be maintained for a very long time.