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Nature 419, 567-569 (10 October 2002) | doi:10.1038/419567a

Archaeology: Life with the artificial Anasazi

Jared M. Diamond

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How can the complex dynamics of human societies — such as population rise and fall, and movement — be explained? Combining masses of data with computer modelling is a fresh way forward.

Many complex systems exhibit properties that cannot be predicted by verbal reasoning, or even pure mathematics, from the behaviour of their components. Human society is no exception.