Sure, people should indeed become "sorta good" at multiple skills. In practice, they do. Many people know how to doodle or play charades or tell stories or sing

Sure, people should indeed become "sorta good" at multiple skills. In practice, they do. Many people know how to doodle or play charades or tell stories or sing sea-shanties. Otherwise, hobbyist Cessna pilots would not exist -- nor the word "hobby". In real life, statements like "he is even unable to entertain himself" are pretty false. > the vast majority of real life is not D-Day or crash landing in the Hudson Sure, but a significant portion of life is spent interacting with the results of other people's work. When you get into a car, would you rather that its microcontrollers were programmed by someone who A: Felt continually distressed and defeated that he had not thoroughly mastered sailing, animal husbandry, military history, rhetoric, first aid, copy-editing, painting, masonry, carpentry, and several other skills. B: Felt fulfilled that the only domains in which he had deep knowledge were microcontroller programming, cooking seafood to his wife's taste, and the emotional/medical meanings of their child's sounds -- yet that they had merely a hobbyists' knowledge of hiking, sketching, kites, anime, and the history of flight. Because I'd rather a world with more of B and less of A.