[debbiedowner]

Just to get the full quote from original article: “their metric space is a social coordinate space. It’s not Euclidean.”

If the space being considered is a probability space like you say, then there is no metric, there is a measure.

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Why am I so pedantic?

Because I feel that the liberal arts mindset of writing is not serious enough for subjects where there is a ground truth to uncover.

In the article you link, where is the empirical study that compares how this model predicts reality?

I wish that people who publish on SIAMS, or ASA, AMS, IEEE affiliated journals were the ones trending on HN, and getting interviewed by journalists. A pessimist would say those people are too busy with their work for publicity, and that an empty barrel echoes loudest.