So i was reading this thread earlier today,
And it got me thinking ... IF Madara is immortal, and then itachi goes on saying that knoledge and awareness are vague and better called illusions.
Then i thought ..Illusions ... I thought about genjutsu, and then also recalled that lady from the shippuden filler whos real form or "body" was a wig or hair or something of that sort. So if Madara is immortal and anyone else notice that every time madaras eyes are shown the Sharingan are activated? So if Madara is immortal and his eyes are always on ... but then when Naruto and his team were searching for sasuke and ran into Tobi/Madara they couldn't attack him because everything they did would go right though Tobi/Madara ... so i'm thinking Madara himself isn't Immortal but his Eyes are, and the reason for the sharingan being active all the time when we see Madara is because he is placing illusions into his comrads/enemies minds because he himself may not have an actual body .. so in the end ..i guess the only immortal thing about Madara would be his eyes lol
I know it sounds a bit far fetched but when you think about it .. that chick who was nothing but a wig lived, so why not The Immortal Madara's Eyes? Or he's pulling one straight out of Peins book, and using his eyes to control a body .. using his eyes to transmit chakra into the body the way Pein used the black rods to control the 6 paths of Pein.
Feel free to correct me or shoot this theory down .. or suggestions? :D:D:D