So did Itachi knew about the Infinite Tsukuyomi?

[Zol]

So the picture of the moon doesn't cut it for you?

Well, no since the dialogue doesn't fit. The moon's eye plan isn't about using Itachi's Genjutsu and/or Nagato's powers.

 

[Angelic.]

he may have read something off of the tablet and since hes smart he probably knew kind of. and the dialogue doesnt fit bc itachi and nagatos wasnt meant for the IT. itachi didnt do anything to stop it orr tell anyone including us lol

 

[kakashisen]

to me itachi is the smartest in the anime
can imagine itachi ve the lowest form of charak and still hasn't been defected by other powerful ninja
with his low charak he can still do great techniques like genjutus, amaterasu, e.t.c

apart from that kayag will which is black zetus said itachi is not a normal ninja , something like that and sasuke is dummmmb
in other words , i think itachi knew about dis by trying to stop the endo tensiz not knowing madara cant escape it.

 

[USSJ Future Trunks]

no he didnt. or else he wouldnt have aimed to stop ET and not what he knows to be the certain end of the world.

to me itachi is the smartest in the anime

lol no.hes done almost nothing smart