What if Tobi is Tobi and Tobi is actually Tobi but Tobi doesn't know that he is Tobi, but Madara put Tobi under Tsukiyomi, So Tobi thinks Tobi is Madara but Madara is Madara and Tobi isn't Madara but actually Tobi?
Actually, What if.. Tobi is Danzou, but Tobi thinks he is Madara because Danzou...