Weedsy thoughts on whether the virus came from accidental release. The most direct ancestor we’ve found was in a bat, but of the two new mutations SARS-CoV-2 has, one hasn’t been seen in a coronavirus and the other was seen in pangolins. https://twitter.com/comparativist/status/1249227273544142850

They’re also arguing you’d need a lot of zootonic ‘species jump’ transfers over time that create short-lived human chains to roll the evolutionary dice enough times to get a pandemic-level pathogen. With an accidental release scenario, it only gets one shot.