Tobi = Nagato with argumentation
Posted this a while ago on diff. threads. Because everybody opens a thread about this, i think its my turn
Very interesting theories around here, but they all forgot ONE thing:
Madara KNOWS Nagato. He KNOWS his ability to ressurect people and more important: he KNOWS Nagato will ressurect him! So: They seem to know each other, and they seem to have a relationship between each other. So here is my Theory about Tobi, that guy claiming himself to be Madara, like he did know him and wanted him to be feared and known:
I think its pretty easy, isnt it?
- First thing was: Tobi takes "his eyes" back (he said he gave "Nagato the eyes")
--> conclusion: The "Nagato" we know, had NOT the Rinnengan from birth on!
- Now Madara says: Nagato has grown up. So he knows Nagato.
Conclusion:
The Nagato we know is just a normal Uzumaki, a person that can handle the eyes.
But: He is NOT the real Nagato.
The real nagato lived at the times of Madara Uchiha. Maybe he was a child at this time. As he wanted to achieve full power, he had to take one Uchihas eyes to control them. Like Kakashi needed time to control them fully and to unleash EMS. But he needed someone for his real eyes. So he searched for someone that can handle his real eyes. So he gave his eyes the kid we know as Nagato.
So:
Tobi is the real nagato!
And Madara knows him. The time gap is gone, and we now understand why Tobi said he gave "Nagato" his eyes.