Crowd wisdom is actually a statistical phenomenon.

大众智慧事实上是一种统计现象。

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Another finding is the phenomenon of "scaling," whereby the actions of a single individual can shape the dynamics of an entire crowd.

另一个发现是“定标”现象，即单个个体的行动能够为整个群体的行动定型。

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Crowdsourcing is changing some industries: the phenomenon is a threat to organisations that sell what the crowd will do much more cheaply.

众包正在改变着一些行业：这种现象对于那些大众能更廉价提供其商品的商业组织来说是一种威胁。

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While street performance has been a fixture in Times Square, the costumed crowd is a recent phenomenon, said Tim Tompkins, president of the Alliance.

WSJ: Street Characters Tread Fuzzy Legal Ground

They used Kickstarter, a site where ventures ranging from new online games to documentaries to clever gadgets appeal for backing in a phenomenon known as crowd funding.

BBC: Good news - journalism matters