Does not rule out shared cause. You observe X and Y and find a correlation. You ... | Hacker News

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kghose on Dec 20, 2014 | parent | context | favorite | on: Cause And Effect: A New Statistical Test That Can ...

Does not rule out shared cause. You observe X and Y and find a correlation. You still have to consider that X and Y are caused by Z. Noise in Z will have echoes in both X and Y.

cafebeen on Dec 20, 2014 [–]

Exactly. They assume this isn't happening, so it's not a very useful idea in practice...

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