In the second-to-last chapter of the last Harry Potter book, why does Dumbledore call Harry Potter the seventh Horcrux, when both of them know (or rather, suspect very much) fully well that Nagini was made into a Horcrux after Tom tried to murder Harry as a one-year-old? Did Dumbledore forget how to count in limbo or something? Or did he forget the conversation he had with Harry in his office after the latter had retrieved Slughorn's memory explaining Horcruxes? He remarks during that conversation that after Tom made his pet snake murder an old Muggle man, he transformed her into his last (and seventh) Horcux.
Because Harry was supposed to be a Horcrux and had to die in order for Voldemort to die but J.K. Rolling changed the last book (which was leaked) due to receiving death threats over the notion of Harry dying ---
"I've never in my life wanted to punch a girl like I want to right now" - Light Yagami NNID: LLBCrook - PSN: ZBugCrook