On her science blog, Sharon Astyk reviews some homesteading/small farming how-to books and says,
Agriculture requires a wide-ranging set of skills vaster than almost any field I can imagine, and while one becomes deeply expert in some parts of the work, it is still necessary, even imperative, to constantly be gaining some superficial understanding of a host of new things. The generalist is jack of many trades, but master of few. That's not a criticism.
This is good news if you're a person who's highly curious, who likes to see how things fit together, or who has a five year old who asks 'why' and 'how' a lot. In a way, it's what attracted me to my first career, teaching. A mentor told me, "You will never be bored." It was true, except for during staff meetings.
I also think there's danger in our becoming a world of specialists. For one, it results in certain metaphors being transposed where this may not be appropriate - so that, for example, everything is a business. To a businessperson, this seems axiomatic. Post-secondary education must produce workers trained for a specific career, and must pay for itself. I am expected to do a financial cost-benefit analysis when deciding whether to take a job in another city, and if I decide to turn it down for family reasons then I am not a serious candidate. If I sell vegetables with business profits foremost, then I must try to achieve a premium price and lower my costs, which may mean that my produce is only available to the rich, or that I use free municipal waste, replete with pharmaceutical residue, to fertilize my crops. If I sell vegetables with the goal of increasing food security, biodiversity, and community engagement, my practices will look quite different and I may use a different metaphor to guide my practices - perhaps the metaphor of an ecosystem.
It's at this point that Gregory Bateson weighs in with the suggestion that
"whenever we pride ourselves upon finding a newer, stricter way of thought or exposition; whenever we start insisting too hard upon "operationalism" or symbolic logic or any other of these very essential systems of tramlines, we lose something of the ability to think new thoughts. And equally, of course, whenever we rebel against the sterile rigidity of formal thought and exposition and let our ideas run wild, we likewise lose. As I see it, the advances in scientific thought come from a combination of loose and strict thinking" *In other words, a wide experience helps us to think of new ideas, to see new things, which can then be refined and tested. Perhaps all the things that I am learning, seemingly dissociated, will be used in ways I can't yet foresee. Learning many ways to learn may be the best strategy.
* Bateson, G. (1941). Experiments in Thinking about Observed Ethnological Material, Philosophy of Science, 8(1): 53-68.