Board Thread:Naruto Discussions/@comment-1018594-20160409062530/@comment-734582-20160410121321

Plenty, actually.

Naruto becoming Jinchuriki was always Plan B. Minato seemed awfully prepared with his baby-sized sealing altar. Well, people can die when giving birth.

The Otsutsuki came to earth because they already had a Shinju and fruit and so had access to interplanetary travel. Humanity was at war to fuel the new Shinju. Six paths chakra is made from the body and souls of the fallen, explaining it's death-theme. Kaguya wasn't allowed to eat it because it was intended to be made into edibles. The Otsutsuki have byakugan predating Chakra because of those edibles.

the Juubi is natural energy, which is where Hashirama's inexplicable sage mode comes from. Ashura's clan split into many, replicating the belief that nobody should have all power and the whole Juubi splitting, whereas the Uchiha seem the sole inheritors of Indra to represent their belief in strength as a solution.