Board Thread:Rebirth: Applications/@comment-8914761-20141019201347/@comment-8914761-20141022214715

But wait though. The Shinju, isn't it like the aggregate of chakra? Long before the founding of the hidden villages, Kaguya Ōtsutsuki, a princess from a faraway land, came to the place of the conflict to end it. Having decided to bring peace, Kaguya breached the prohibition and ate the forbidden fruit of the Shinju, attaining god-like powers. Using her new-found power, Kaguya brought forth peace by force, causing her to be revered as the Rabbit Goddess and later as the Demon.[3][4] Some time later, by means unknown, the Shinju incarnated together with Kaguya and took on a form which would come to be known as the Ten-Tails.[5]

^ That exert there, gives a valid these that the Shinju's power was maybe why Kaguya had awakened the Rinnegan. Why? Well, if Kaguya had the Rinnegan prior to eating the fruit, then wouldn't she have the power to change the world? Just saying, it's extremely plausible, and because there is no positive or negative feedback, you can't really oppose such a theory.

Then there's this from the Chakra Fruit:

"Once in a millenium, the Shinju bore a single fruit, consumption of which was deemed forbidden. Upon breaking the taboo and consuming the Chakra Fruit (チャクラの実, Chakura no Mi), Kaguya Ōtsutsuki gained an enormous amount of exceptionally powerful chakra, with which she was able to single-handedly stop all the wars that plagued the lands."