Z-Filters is a technique for listening to what millions of people are talking about.

If a hundred million people were to talk about a hundred million different things, making sense of it would be hopeless, but that’s not the way society operates. The number of things that a million people are talking about in a public forum at any given moment is much, much smaller—thousands, not millions—and by limiting the results to subjects that are newly emerging or newly active, a comprehensive view of what’s new can be seen at approximately the data-flow of the Times Square news ticker.

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