Board Thread:Theories and Speculation/@comment-1512913-20161122142914/@comment-734582-20161124105756

Elveonora wrote: Toneri is also the best candidate for an incarnate if true, since he is the last and the latest one born from Hamura's Moon descendants and there can be only 1 incarnate at a time, until the current one dies and next generation gets born. I agree that this makes sense. Elveonora wrote: I would still like to know how come Hamura had the Tenseigan, but not Kaguya... and when did he awaken it and how? The manga at least shows him fighting Kaguya with ordinary Byakugan, so he either had it deactivated at the time, or it was awakened afterwards, but before departing to the Moon. Kaguya has Tenseigan, in a way. I think that she does have that power, but it simply hasn't manifested in her eyes. Same way that she doesn't have Rinnegan. I think Kaguya has many powers which means that they interweave but do not dominate any specific part. Hamura and Hagoromo however only seem to have roughly half her power, and so this power specialized in their eyes: For Hagoromo i think it was his Six Paths chakra that formed the Rinnegan (and so gave it power over death in addition to the standard reality powers), and that Hamura's Byakugan combined with Six Paths Senjutsu to form the Tenseigan. Elveonora wrote: I was also considering that the Tenseigan is 'Mangekyou Byakugan' basically, but now it would seem that Tenseigan to the Byakugan is more like Rinnegan is to Sharingan, related but separate doujutsu, since the Tenseigan doesn't seem to have any of the powers that Byakugan has, like long range-almost 360 degree-x ray vision and the way it's obtained is akin to the Rinnegan. I think it's a combination. I think that the Moon Otsutsuki have a different Byakugan that contains the Senjutsu component, whereas the Hyuga possess the vision component. I think both branches can combine ala Eternal Mangekyou to form a "mangekyo" Byakugan which possesses both powers. When combined with Six Paths chakra and Senjutsu it forms into a Tenseigan.

Now, there are two things i would add: Consider also that the supporting power of the Sharingan is in the brain (which forms and evolves it but also creates Susanoo) whereas the supporting power of the Byakugan is in the body.
 * Hamura would've had this "mangekyou" Byakugan
 * It doesn't have a special name because it's technically the same eye. It's rather that the supporting powers are different.

I think the Byakugan has no true evolutions because it's an "advanced" eye that combines with other "advanced body" powers, rather than the Sharingan which manifest a more spiritual power (practically speaking, the power of the brain). Looking at Kaguya, i think chakra modes, Sage Mode, Sage Transformations and Shikotsumyaku were intended to work with the Byakugan and are KKG that weren't meant to be separated.

I also think that unlike Hagoromo who's children inherited Eyes and Body separately, Hamura's children inherited Byakugan but one inherited the all-tenketsu ability plus possibly X-ray vision whereas the other inherited the Sage part.

(I keep mentioning sage mode because i think it's fairly clear that Sage Mode has a strong connection and parallel to the Byakugan, and i think they were meant to work together).