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Friday, March 25, 2011

Thinking in Systems: A Primer

Just before her death, scientist, farmer and leading environmentalist Meadows (1941-2001) completed an updated, 30th anniversary edition of her influential 1972 environmental call to action, Limits to Growth, as well as a draft of this book, in which she explains the methodology-systems analysis-she used in her ground-breaking work, and how it can be implemented for large-scale and individual problem solving. With humorous and commonplace examples for difficult concepts such as a "reinforcing feedback loop," (the more one brother pushes, the more the other brother pushes back), negative feedback (as in thermostats), accounting for delayed response (like in maintaining store inventory), Meadows leads readers through the increasingly complex ways that feedback loops operate to create self-organizing systems, in nature ("from viruses to redwood trees") and human endeavor. Further, Meadows explicates methods for fixing systems that have gone haywire ("The world's leaders are correctly fixated on economic growth ...but they're pushing with all their might in the wrong direction"). An invaluable companion piece to Limits to Growth, this is also a useful standalone overview of systems-based problem solving, "a simple book about a complex world" graced by the wisdom of a profound thinker committed to "shaping a better future."

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