Comment by DoreenMichele
Comment by DoreenMichele 10 hours ago
Thank you for the context. My reasons for thinking it was credible have nothing to do with "math I didn't understand."
I actually think the larger problem is how it spread via travelers and that some of the actions taken nominally for purposes of controlling the spread actually made things worse. People were herded together in airports to be checked or some nonsense.
We may never know the origin story and I still don't know what to suggest in practical terms for preventing something similar from happening again, but I do think it needs to be addressed someplace other than "wear face masks and use hand sanitizer" while otherwise doing the same stuff that helped spread the virus around the globe.
I hadn't read your top-level comment here before I wrote mine, but I think you're responding to a different question from the one the authors intended to answer. The paper's language is rather muddy (even vs. the preprint), I assume because Cell required the authors to weaken their claims. The authors' comments to the popular media express their intent more clearly:
> "This paper slots into many other studies over the last few years that have been building the case for this very clearly being a natural virus that spilled over, very likely at the Wuhan seafood market," Kristian Andersen, co-corresponding author and professor at Scripps Research, told Newsweek.
https://www.newsweek.com/scientists-shed-light-wildlife-spec...
This paper is about that initial introduction of the virus into humans, not about subsequent human-to-human spread. The authors are arguing that SARS-CoV-2 was "very clearly" natural, and thus not a research accident. This forms the basis for arguments that additional regulation of high-risk biological research is unnecessary, since it's much harder to say that with the possibility that such research just killed ~30M people.