The true narrative depth of Ultra Instinct mastery
Ultra instinct came out of nowhere especially since in all of Goku's battles the ability to dodge and attack faster than your opponents can predict/follow was simply an advantage of being so much stronger than them, no matter how many they were. But from the narrative point of view, Ultra instinct mastery is just a continuation of Toriyama's idea that Goku needs to master techniques too and not just power-ups to prove how much stronger he's gotten.Goku learns one technique from each of his masters: Kamehameha from Master roshi, martial arts principles from korin, energy control from Kami, the Kaioken and spirit bomb from King Kai, and the instant transmission from Pybara of Planet Yardrat... then suddenly Goku's no longer learning techniques, but just how to break his own limits and master new transformations. Goku's masters had been giving Goku strength training in various forms, but not with the intent that he'd be a meat bag that packed a punch, but a f...