Board Thread:Wiki Discussions/@comment-1514283-20140911040828/@comment-1512913-20140914184023

Well, considering I don't agree that every user's TSB consists of all natures... but I'm gonna pretend otherwise for now. Let's say every user's TSB are the same nature. In that case, the black substance and kekkei mora would be synonymous, since there can be no other kekkei mora.

For Truth Seeking Ball being the core ability as Reliops proposes, then no, since again :P I don't agree about TSB equating kekkei mora in anyone's but Kaguya's case.

The second reason that I'm sure even you will agree with me upon Foxie is, that even if I'm wrong, then TSB isn't just kekkei mora (mix of all natures) but also Senjutsu/six paths chakra whatever nonsense Kishi makes up. So it's quite possible that there may be mix of all natures without Senjutsu stuff, thus not TSB.