Seems pretty obvious to me that the answer to that is QL and Renaissance Man.
It also takes a shitload of learning and studying, much of it having no immediate payoff whatsoever.
It’s the type of thing that you can’t really do unless you genuinely love the act of learning. This isn’t a 1 year thing, it’s a life-long “conquest” that isn’t really the type of thing that one pursues. It just kinda happens, and it’s born from a genuine love of knowledge and learning.