Why do share prices, skirt lengths, even the state of the European Union, fluctuate so wildly? It's down to social mood, says John Casti, and we must heed its messages
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From climate change to vaccines, evolution to flu, denialists are on the march. Why do so many people refuse to accept the evidence?
As banks and markets crash, what can science do to reshape economics and make it fit for a finite world?
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