Board Thread:Naruto Discussions/@comment-26127155-20150326052215/@comment-3279282-20150418101018

Madara said to win the war, the princess from the Otsutsuki clan ate the fruit. The databook says the Otsutsuki clan comes from another world in search for the fruit. And 世界 is used as world literally everywhere. Of course it has multiple meanings (it can even mean universe), but as our word world, it is almost always used in the context of the earth. Even the Japanese wikipedia article about it translates it as world and shows pictures of our earth. Not of our society or the universe, but the earth. Read alone, the first Kanji means generation;  world;  society;  public and the second means world (boundary would be sakai and could only be meant when the Kanji was used on its own). Then we have things like the 世界大戦 sekai taisen, the world war or the 世界保健機関 sekai hoken kikan, the World Health Organization. And in the databook, the wording used is 飛来する hiraisuru, which means to come flying. You don't come flying from another society, do you?