Are you guys insane? Itachi's Tsukuyomi might be able to twist 1s into 24h but it doesn't do that in the same second it strikes. Itachi can't think of 24h in one second and if you think he can even Darwin is going: come with me.. this is the assent of Men, you stand there.
+ After the target is caught under Tsukuyomi, this is the strongest of all Genjutsos and the target can not dispel it. But it is still a Genjutso meaning that the user must sync his chakra with his target in order to force an illusion. If the targets chakra is disrupted/disturbed then the Genjutso is canceled no matter how strong it is, because the user loses the sync once the chakra floats. And that's why a perfect Jinchuriki is immune to Genjutso. Because it's chakra is varying from moment to moment so nothing can sync with it.
Number two Naruto was able to avoid being caught by Itachi's Genjutso last time they met. If you are ignoring this then you are being bias towards Itachi.
Truth is that if Naruto manages to stay away from Genjutso (and the latest mangos hint that he can) then Itachi is screwed. If Itachi manages to pull a way to catch Naruto in a Genjutso then Naruto is done for.
I have to disagree with you Itachi only needs 1 second to wear you out really even bee was caught in Sasuke Tsukuyomi he stated i can't move while hitting the floor it's just sasuke isn't able to bend time like itachi could cause does five second would have recked anyone.
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Here the key words are snap me out of it So maybe he wouldn't get a full affect but he still get a hell of a hurt
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Itachi puts a simple genjutsu on killer bee and the 8 tails is shaking bee telling snap out of it
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It matters If Naruto Goes Rikudō Mode & Sage Mode Combined he would have a much higher chase of pulling it off, because if naruto is in sage mode he doesn't need to keep his eyes open to see a thing so Tsukuyomi wouldn't work on him but i'm guessing his not to smart for that yet.xd
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He's quick enought to dodge Amaterasu but i'm sure itachi would out smart him some how and i always wondered if naruto chakra arms if there's able to atleast block Amaterasu for A second or two
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But i think itachi would still win