Board Thread:Theories and Speculation/@comment-28819877-20170801141801/@comment-28819877-20170802071437

Perhaps i mistakenly called this world the shinobi world. Ordinary people also live there. So i presume they become scientists/historians because both they and shinobi obviously share our nature - desire to know everything. So appeare of supernatural things like chakra and Ten-Tails can be considered as revolution of people's understanding of universe and creation of manuscripts.

So either all of them were really destroyed by BZ as stated above or permanently damaged throughout previous world wars(unlikely).

I was presuming that Hagoromo really was a semi-fantastic figure because i considered him as an actual hermit who hadn't been seen by anyone. According to the fact that he was known by considerable number of people, at least his name should have been revealed by some historians, thus this leads us to BZ again.