Or they're already under the infinite tsukiyomi and must find a way out.
The only point that needs to be restated for this entire "argument" is that Tobi/Madara fought Yondaime and had full control of Kamui. We don't know enough about Kamui yet to make a fully-intelligent analysis. We don't know if its a special mangekyou, if Obito came from a strong bloodline or something, or, most importantly, if his Mangekyou is exclusive to himself. That's the key: if there were other people within the Uchiha that had the propensity to develop the eye needed for Kamui, then that opens up a wellspring of potential candidates within the clan, but if Kamui is 100% exclusive to Obito... we have ourselves a problem that might only be explainable through either time-travel or Obito being some kind of vessel for someone else's consciousness.
I'm leaning more towards the latter, especially how Tobi obviously seems to have Obito's memories, yet keeps stressing that "I'm nobody". I doubt he's saying that simply to wear a cheap mask (figuratively) over the fact that he's Obito underneath, but that something or someone... happened to Obito as he lay crushed under those rocks.
I fucking bet you Orochimaru knows; he probably translated the secret of what the Rinnegan eye is needed to translate in the Secret Uchiha hideout - probably something about once a Sharingan becomes a Rinnegan, possession and other shit is possible.
All I know is that whoever Tobito is, he's fucking strong. He has a potentially-exclusive Kamui Mangekyou, a Rinnegan, obviously has Senju DNA within him to boost his chakra and stamina to absurd amounts (he's never once complained about needed to retreat based on exhaustion) and a full mastery of a complex array of jutsu.
don't know why so many people are upset with TOBI = OBITO. it wasn't even explained why he is obito or if he is even the real obito. shiiiitt...y'all need ta chill da fuck out and let my man kishi do the storytelling.
nobody said the masked man who fought the fourth IS tobi/obito, nobody said kamui is exclusively to obito, who knows what was done to his half dead body.
Even if it is different Tobi's through different era's, long-hair vs. short-hair etc., the time-line is still jacked up.
You have long-haired Tobi controlling the Mizukage, then short-haired Tobi starting the Konoha incident, only to be long-haired Tobi again when he helped with the Uchiha massacre.
Seriously, I can't wait to see this explanation because it's going to have to be nothing short of sheer brilliance to justify the stupidity of it being Obito.
One question I wanted to ask. Did Tobi reveal his name when fighting the 4th? I don't remember.
Spoiler: show
not sure why this is such a big suprise to people. hell just move the letters around in Obito and drop one O, there you go Tobi. Almost like Org13 from Kingdom hearts where thier names where just jumbled up from thier lives before but added a X, Roxas/Sora.
Tobito is such a bad ass, niggas own sensei from no more then a year or two ago didn't recognize him.
did the anime ever get around to showing the kakashi gaiden arc?