Re: Only a SAGE can be Jinchurriki of the Juubi !!!
Where does it say that he didn't come up with the understanding of ninjutsu and chakra till after he became Jinchuriki? Cause I honestly don't believe that.
Originally Posted by dhaoracle
Hmm about this I don't think it is a valid argument, since it was the SO6P who created the 9 tailed beasts. So he must have given them the powers as well. The 10 tails is not comparable to these 9, since it consists of all of them. Perhaps SO6P had all these abilities as well, but other shinobi has been able to use some of the same abilities. I think the SO6P gave them these abilities, since it would make no sense if they belonged to the Juubi (ink for instance wouldn't make sense).
2. It would make sense for him to gain the Rinnegan after becoming the Jinchuriki of the Juubi based off how ALL of the Jinchurikis have ALL gained a unique power of their Bijuu; Gaara manipulates sand, Yugito breathes fire, Yagura materialises coral, Rōshi creates and manipulates lava, Utakata creates a corrosive alkali, Fū is capable of flight, Killer B produces ink, and Naruto has quick regeneration and can detect negative emotions. So it wouldn't be too far fetched for Rikudo Sennin ti gain the Rinnegan ability from a Bijuu who has God Like powers and users with the Rinnegan has God Like powers.
Again there is no evidence that sharingan came from the Juubi. The Juubis eye doesn't look that much alike it. The Juubi has 10 spots in the eye, which is more likely related to its number of tails. The circles in the eye does, however, resemble rinnegnan, I will give you that, but it is being controlled by rinnengan users in all these illustrations, though it's impossible to say, whether this is related or not. Nonetheless there isn't much evidence for this matter, in fact I find more against it than for it. We haven't seen any official coloring of the Juubi yet, but most draw it with a red eye, which of course is related to sharingan then, but still need some actual valid proof for it.
3. The Sharingan is a Demon ability which came from the Juubi, to the Older brother, and then watered down to his descendants. This is exactly why it is required for a user to have both the Eyes(Spiritual & Uchiha) and Body(Physical & Senju) in order to gain the Rinnegan all of the most powerful attributes of the Juubi. No human power back then would have produced such a great power over the generations such as the Uchiha and Senju without having such powerful chakra reserves, physical attributes(Powerful Yang Energy), spiritual energy(Powerful Yin Energy), and Nature Chakra to make the chakra immeasurable that could only come from the Juubi.
I am pretty sure it was said somewhere in the manga that he invented some sort of sealing technique to seal the Juubi inside himself. If he did this before learning all those things, it would make no sense, unless it will be explained in many details. Perhaps the Juubi accepted him, and wanted him to bring peace, but as for now it seems unrealistic that we will ever know. It is pretty evident that he must have mastered many of these tings before becoming jinchuriki of the Juubi, but I cannot disprove that he would need rinnengan to do it. Sage mode, grand ninjutsu and sealing techniques, all these could probably do it, but there is just no way that he got these from the juubi itself. Hence unless the juubi wanted to be sealed.
So now it is safe to say that Rikudo Sennin not only learned about chakra & gained the Rinnegan but also learned to become a Master of Nature Energy by not only becoming the first Jinchuriki but also the first Perfect Sage. With that kind of power(Rinnegan, chakra energy, and physical power) his already great power is multiplied by 10. So I think that Sage Mode has much much more power than we have seen so far. I also think that Sage Mode is meant to be fused with Bijuu Chakra why because all of the Bijuu were split from the Juubi who is made of Pure Nature Chakra. I just can't wait for the next chapter..
But why couldn't the sage himself be the product of 2 former war clans that had been the main clans in the past world. This product itself made a person with a unique chakra and unique eyes. We cannot look away from this possibility since a child with his origins from uchiha dad and senju mom hasn't been seen yet.