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媒体结构的改变是和对广播系统操控的改变紧密相关的

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这种操控就是一个人在广播站

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决定通过电波播送啥

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如果像互联网那样分配网络系统，任何人都可以是服务器

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于是播音员和听众也就没什么区别了

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每台计算机都兼有这两种身份

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你可以在你的家用笔记本电脑上运行一个服务器来分配电影、音乐、

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网页和电邮，就和谷歌最大的计算机可以做到的那样

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伊拉克机房的计算机

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和你桌面上的

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老式播音系统

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没有任何本质的区别

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他们本质上都受限于电波空间的数量

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通过电视电波你可以有十个频道

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有线的话你甚至有500个频道

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互联网上每个人都可以拥有一个频道

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每个人都能有自己的博客或者聚友网的页面

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每个人都拥有表达自己的途径

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所以现在的问题不是

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谁能接触到电波

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而是谁能控制

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你聚众的途径

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于是你开始看到权力集中于像谷歌这样的网站

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这样的“守门人”告诉你在网络空间里你想去哪

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谁能给你提供信息和资讯

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所以不只是某些人有说话的权力

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每个人都有说话的权利

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问题是谁会听你说话

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所以在这个有众多说者的世界里我们面临的最大问题

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就是怎样才能发现有益的事物

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是不是我们就得依着老式的媒体系统去有线新闻电视网

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听者他们挑出来的几个人

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在那里滔滔不绝

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又或者我们要去像互联网这样一个更民主的系统

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这里每个人都有被听到的机会

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做这件事的一个最有趣的的技术系统

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叫做协作筛选

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这样每个人都能就自己的喜恶各抒己见

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计算机则会将你和有同样爱好的人相配

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推荐给你一些他们喜欢而你以前不了解的事物

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亚马逊就是这样运行的

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买了这本书的人也买了这本书

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他们不只是就书籍来进行体验

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还有博客、网页，以及网上的新闻

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他们就是要找到你从前没听说过的事物和途径

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并将这些带给你共享

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大众媒体却在此体现了一种本质的悖论

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因为它的受众广大

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却想令人相信他或她是唯一的

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电视广告总是播放着

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反潮流，买xx牛仔，不是吗？

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这可是有400万人同时收看，

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做着四百万人同时做的事可不是反潮流。

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而互联网却使得这些

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大众媒体受到前所未有的威胁

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