Board Thread:Theories and Speculation/@comment-5273810-20150207055437/@comment-5936871-20150409033720

@GreatesSin It isn't BS at all. Ever since the beginning of the series we had ninjas who could use a supernatural power known as chakra to do all kinds of crazy things. We had giant talking animals summoned from other dimensions and the main character had a freaking nine-tailed demon fox sealed inside him and Gaara (at the time) had Shukaku in him who was believed to be a former Sunagakure priest who became a powerful demon tanuki.

Then they elaborated more on things in Shippuden and we found out all about the Tailed Beasts and how they were considered forces of nature and immortal and everything else then we got the Sage and the Rinengan and so on forth. The explanations aren't crappy nor surprising as things became even more supernatural, ancient, and godlike as the series progressed. I personally find the background of the Otsutsuki Clan interesting but that's just my opinion.