Agreed, sasuke couldn.t know cuz he was busy hunting itachi but fair enough; naruto could have remembered her words and indeed I recall her stating your current state, which explains why obito didn't die and reviving yourself is just one person.. nagato could revive his puppets too (even did 3...
looked like a repeat to me.. repeat of their dispute on top of the hospital but this time it's in kakashi's interest not to do anything cuz he can't keep on cheating death..
well, actually the first part can be read with sharingan, the second part with Mangekyou Sharingan, 3rd with Eternal Mangekyou and the last part with Rinnegan. If I'm correct Itachi, Obito or Madara explained.. Reason why?? Dunno for sure but might have something to do with the message being...