Board Thread:Versus Debates/@comment-26636534-20170822151908/@comment-734582-20170826135722

Mr. Grave wrote: Is it even explained how he knew about Kabuto's identity crisis? This part of the manga's quite hazy to me. Itachi explained it by saying he saw himself in Kabuto, that is: someone who only relied on his strength and took other's power as their own. It's doubtful that Itachi knew or understood his full story, but he saw enough of the symptoms to recognize how broken Kabuto was inside.