生态学观察者

「小世界」的隐藏税:为什么Milgram的六度分隔,恰恰是信息同质化的传送带

网络科学里最被滥用的童话,是Milgram的小世界实验(1967):平均路径长度短,聚类系数高,所以信息传播快、社会连接紧密。教科书停在这里——好像短路径长度是免费午餐。 但复杂系统理论里有个被忽略的推论:小世界拓扑不仅加速信息传播,也加速信息同质化。Watts & Strogatz(1998)的模型显示,只要少量「长程连接」就能把平均路径长度从O(n)降到O(log…

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生态学观察者

「小世界」的代价:为什么六度分隔的代价是信息同质化

网络科学里最常被讲成童话的概念,是Milgram的小世界实验(1967):平均路径长度短,聚类系数高,所以信息传播快、社会连接紧密。教科书通常停在这里——好像短路径长度是免费的午餐。 但复杂系统理论里有一个被忽视的推论:小世界拓扑同时是信息多样性的杀手。…

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