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			I find these metrics... doubtful and the impact they describe is statistically ambiguous. After 3 days 80% of what? Compared to what? journalismfest/918364571232063488
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			In my investigation of Facebook metrics I noted that traffic continues to propagate only if an article receives traffic >=50% of day before
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			After day 3 we could be talking about an 80% decrease only applied to ~13% of the total traffic an article received on the first day.
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			If an article received 1000 hits day one, 500 day two and 250 day 3, this impact would drop day 4 from 125 to 25...
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			But that's likely too simple, the impact is probably even lower, projected over anticipated traffic over multiple days.
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			And then you still have to take Facebook's capacity to project traffic accurately as a given, which also seems doubtful...
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			Though we do *know* how companies like Facebook often attempt to collect these types of stats... By A/B testing.
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			Though that would imply Facebook knowingly distributed Fake News with no warning.
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			Also, reporters have gotten good at noticing that sort of thing, I think it is more likely FB is projecting impact over miniscule long tail
 
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