Board Thread:Naruto Discussions/@comment-32624156-20170721153715/@comment-25122992-20170728211812

There was no reason to rehash all the entirety of Hagoromo's story, I know it well enough. However, you're completely leaving apart the words I've made the emphasise on. In the conclusion of this very story, right before endowing Naruto/Sasuke with his chakra, Hagoromo said to the latter that he wasn't going to repeat the same mistake by entrusting everything to a single son alone and thus would share his power with Indra's reincarnate too, already hinting that there was some power he gave to Asura. He recited this part once again when Sasuke has begun his "revolution plans", namely that the outcome between the reincarnations remained the same, despite him entrusting his power to both of them this time instead of Asura only. If Hagoromo didn't mean the actual "power" he gave, then he wouldn't have any reason to lament, since he had to choose a single successor and couldn't divide the authority between two of them at once.