Board Thread:Theories and Speculation/@comment-25547449-20160805204709/@comment-1512913-20160805215842

Even if Hagoromo did not use the TT chakra to give to humans but just his own, being Kaguya's son, the progenitor's of all chakra on Earth, then yes, all chakra on Earth was originally Kaguya's and she just wanted to recollect it.