The technical content of your comment looks correct, but "Chaos" is the first word in the abstract of the paper: https://academic.oup.com/mnras/article-abstrac

The technical content of your comment looks correct, but "Chaos" is the first word in the abstract of the paper: https://academic.oup.com/mnras/article-abstract/493/3/3932/5736044?redirectedFrom=fulltext https://academic.oup.com/mnras/article-abstract/493/3/3932/5... The blurb that's linked to HN is not very lucid, but the scientists who wrote the paper make it very clear that they're just talking about deterministic chaos.