“Jack of all trades, master of none” is an artificial pairing.

It is entirely possible to be a jack of all trades, master of many. How? Specialists overestimate the time needed to “master” a skill and confuse “master” with “perfect”…

Generalists recognize that the 80/20 principle applies to skills: 20% of a language’s vocabulary will enable you to communicate and understand at least 80%, 20% of a dance like tango (lead and footwork) separates the novice from the pro, 20% of the moves in a sport account for 80% of the scoring, etc. Is this settling for mediocre?

Not at all. Generalists take the condensed study up to, but not beyond, the point of rapidly diminishing returns. There is perhaps a 5% comprehension difference between the focused generalist who studies Japanese systematically for 2 years vs. the specialist who studies Japanese for 10 with the lack of urgency typical of those who claim that something “takes a lifetime to learn.” Hogwash. Based on my experience and research,