How Twitter followers propagate information
summary
Claims that follower reach multiplies through layers: four followers whose followers each have four yields a reach of 16, but real spread equals that cascade times an amplification chance (probability each follower retweets), which drops with lower relevance or authority. Notes that measuring this downstream amplification across multiple hops approximates Google’s PageRank, and that introducing an official retweet button replaced messy emergent retweeting to let the platform compute a PageRank for humans for advertising and analytics.
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