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A comment on Popularity of technology on Stack Overflow and Hacker News: Causality Analysis. Parent comment

Re:Popularity of technology on Stack Overflow and Hacker New... by red75prime on Sunday June 10, 2018 @10:12AM (#17278186)
And then the author remarked that Granger causality doesn't indicate causation. It is a measure of how well one variable predicts upcoming changes in another. It doesn't mean that direct manipulation of the first variable will necessarily influence the second one.
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Re:Popularity of technology on Stack Overflow and Hacker New... by thanatropism on Sunday June 10, 2018 @10:33AM (#17278284)
Causation is an ill-defined concept. Already Aristotle had to define several kinds of causation, and philosophers still struggle with it.

It's even possible, per Hume, that causation doesn't actually exist.

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