Posted this in a thread, but it probably belongs here instead.
First of all, Kishi is HEAVILY alluding to Tobi being Obito, not only in this chapter but in the past several chapters as well with the KakashixTobi interaction. This chapter confirmed (vaguely anyway) that Tobi obtained Obito's other eye at some point.
However, he still hasn't said flat out that he IS Obito.
Assuming that he is not (for argument's sake), I believe after taking into consideration the dialogue from this chapter that he can be no other than...
You must be registered for see images
You guessed it, Izuna. I know you're probably groaning and typing in right now to use the bloody search bar but please just hear me out and have a look at what I'm talking about. I'll try to focus mostly on this chapter's events.
Firstly, we know that the Sharingan Tobi has been flashing this entire time isn't his. While this may provide evidence for the boat that believes Tobi is NOT an Uchiha, I would argue that his ability to use his Sharingan (
two when fighting Konan) constantly coupled with a Rinnegan and his deep knowledge of the Uchiha Clan and Madara make him so.
That aside, we also know that the Rinnegan he possesses was also obtained from another. Now how does this relate to Izuna?
You must be registered for see images
Lookie!
NO EYEBALLS.
A lot of people believe that since Izuna "died" according to Madara, there is no way that he could possibly be Tobi. This theory argues that at some point, using the RINNE TENSEI (the Rinnegan tech Nagato used to revive Kakashi, Shizune etc. after they had died) Madara revived his OWN BROTHER. And since his eyes were "given" (supposedly) before his death, he would have likely been revived with no eyes.
Note that Rinne Tensei works different than Edo Tensei, instead of the subject being revived in his "Prime", he/she is revived into their dead body as seen below.
You must be registered for see images
So upon revival, Izuna
needed eyes, hence Obito's eye, and the large collection of Sharingan Tobi is seen to possess, and Nagato's eye. One flaw that I can't explain is how Nagato came to posses Madara's eyes and why he didn't just give them to Izuna (possibly because you can't do a double-swap of eyes but meh...)
Anyway, back to the chapter's dialogue. A majority of the chapter is Tobi slandering Kakashi for being a hero of false words. Those that argue in favor of Obito would argue that he's talking about Rin (which he probably is) and how Kakashi apologized to Obito's grave often for probably not being able to protect her.
How does Tobi know this? My answer is he gets around as a huge stalker (which is how he knows Kakashi spends a lot of time in front of Obito's grave), or that through Obito's eye, he was able to somehow witness or see the events leading up to Obito's and Rin's death.
Now this next part is FUNDAMENTAL to this week's chapter.
Remember the Tobi-Sasuke conversation where Tobi spilled the beans on the Uchiha's past? Tobi claimed that Izuna GAVE Madara his eyes, but we all know that Tobi lied about the Nine-Tails being a natural disaster, could he have lied about this too?
My guess is yes. Itachi, (the Sherlock Holmes of Naruto...erm, or is that Kakashi :S) claimed that Izuna's eyes were TAKEN by Madara.
You must be registered for see images
Now imagine that this was really the case, and picture how Izuna must have felt to have been robbed of all that power and glory from the one he trusted the most. Not only power, but his FUTURE as well. Sounds like the classical effed up past that turns someone into a villain, no? Now take this into consideration as we look at this week's chappy.
You must be registered for see images
Tobi hounds Kakashi for false promises. Now think about Izuna and Madara's relationship.
If he assume that Tobi IS NOT OBITO, then Tobi being Izuna here makes perfect sense. It's as if Tobi is comparing Kakashi to Madara
This is supported by Tobi's line
"What someone like you says"
as if Tobi has encountered a hero of false promises before.. If it were Obito, wouldn't he have no one to compare Kakashi to? Wouldn't Kakashi be the object of his vengeance (for failing to save Rin) and no one else?
Furthermore, Madara and Izuna were raised on the notion that their power (the Mangekyo) would lead to great fame and power for the Uchiha back in the day. Izuna and his brother likely believed this without a doubt...until they discovered that the Mangekyo eventually loses it's light. Like I mentioned before,
Izuna was robbed of his power and dreams when Madara took his eyes. Since Izuna probably didn't die right away, the reality of his treacherous brother and no hope for the future caused him to hate heroes of false promises. Madara likely promised Izuna that the two would conquer all clans and beat everyone with their amazing Mangekyo power.
When Tobi says "reality is cruelly moving forward", he is likely referencing the torment he had to face once his eyes were plucked.
Moving on...
You must be registered for see images
The line
"I want to build a world where heroes don't have to make pitiful excuses in front of graves" automatically makes one think of Kakashi in front of Obito's grave.
But imagine the excuses Madara must have said to Izuna both while he was alive and to his grave after his eyes were taken. He probably justified robbing Izuna of his future in the name of the clan and since he was the eldest, only he could take responsibility fr the clan's well-being. How would you feel if someone you loved stole your future and accomplishments from you in the name of a "greater cause"? Not only that, but
Madara failed in the end to achieve Uchiha superiority So what did Izuna give his eyes for?
You must be registered for see images
This last page sums it up nicely. Tobi questions Naruto about what will happen if he fails in his mission to bring peace to the ninja world. Izuna is the exact definition of "the hollow reality" Tobi is talking about on this page.
Even after Madara failed, Izuna's hollow reality continued on without any hope. Think about what Izuna must have felt when/if he was revived by Madara and learned that his sacrifice was for nothing.
To Izuna, using hope as an excuse means nothing in a world where reality can be cruel, unfair and unforgiving.
Finally, this page proves essentially everything I was talking about.
You must be registered for see images
If we assume that Izuna's eyes were indeed plucked, imagine how much emotional control it would take for Tobi to tell a straight lie like this. Notice how he clutches his arm!