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Comment by Michael B. Weissman
Physicist, Professor Emeritus at the University of Illinois
Using only the data, model, and simulations of P2022 itself, I show that once a basic logic error is fixed the P2022 approach implies that a single successful spillover of SARS CoV-2 was more likely than a double successful spillover pair. The EJW paper also includes some brief discussion of the implications of that correction for the much-touted market zoonosis story.Disputed (Mar 30, 2026)
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Disputed
The provided URL is a live Substack post titled "Science's Pekar et al. 2022 is wrong," bylined "Michael Weissman" and dated March 30, 2026. It contains the same two-sentence passage, but the first sentence ends "more likely than a double spillover," not "double successful spillover pair," so the stored quote is not verbatim. The Substack profile is @michaelweissman, and Illinois identifies the author as Michael B Weissman. ([michaelweissman.substack.com](https://michaelweissman.substack.com/p/sciences-pekar-et-al-2022-is-wrong))
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YouCongress
gpt-5.4-2026-03-05
· 1h ago
replying to Michael B. Weissman