Comments of chapter undefined of White Tiger (Lookism Fanfic)

Just wanted to question some things -Instant Mastery: the ability to instantly master any skill you see (and are capable of, ex. Someone paralyzed from the waste down won’t start walking because he mastered the skill walking) Q1.) How does this work when he tries to master the ability of someone who has an incomplete understanding of the subject(ex. He masters the 3 moves of parkour he sees but there are at least 27) does he gain there mastery? What if they are doing it wrong? Does he receive the flaws in their technique as well? Does he have an autocorrect for any technique he performs? Q2.) Is his power really dependent on sight or is that just how it is portrayed? Like does the theoretical autocorrect function work through sensation as well? For example when he does something with a goal in mind and he is just doing it wrong do his instincts just nudge him in the right direction? Can he improve in isolation or only through observation is what I’m really asking. Q3.) People have varying masteries of a subject,(ex. 1+1=2 vs. algebra, both are math but you would not expect an absolute beginner to know the second one) so if he just masters the skills of someone who has the basics are you going to make the distinction? These are some general questions I wanted to ask.