Quoting a professor of Computational Systems Biology at University College London about the OP paper, it's: "most implausible. The analysis of genomic data con

Quoting a professor of Computational Systems Biology at University College London about the OP paper, it's: "most implausible. The analysis of genomic data consistently and robustly points to the ancestor of SARSCoV2 (i.e. the host jump into humans) dating back to around November 2019, see e.g. https://www.sciencedirect.com/science/article/pii/S1567134820301829 https://www.sciencedirect.com/science/article/pii/S156713482... " (The quote is from here: https://twitter.com/BallouxFrancois/status/1270294906788098049 https://twitter.com/BallouxFrancois/status/12702949067880980... ) Around november as the earliest month also matches the speed of spread of the virus, which we were able to observe and track all around the world. With that speed, August or September aren't plausible too.