EpiStack

H-12 - Judge Eric Stansifer- zoonotic spillover at the Huanan Seafood Market is the more likely origin (high confidence)

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Properties12
type
hypothesis
id
H-12
state
merged
question
What was the origin of SARS-CoV-2 — zoonotic spillover (at the Huanan market) or a lab leak (gain-of-function research at the WIV)?
statement
Judge Eric Stansifer's written decision concludes with high confidence that SARS-CoV-2 emerged from zoonotic spillover at the Huanan Seafood Market, and correspondingly assigns the (narrowly-defined WIV gain-of-function) lab-leak hypothesis a low posterior: his worked Bayesian table puts P(zoonotic) at about 99.9% and P(lab leak) at about 0.075% (~1-in-1300), driven mainly by the epidemiological proximity of the earliest cases to a plausible animal source rather than a lab source, with the caveat that the precise figure is not to be taken in earnest while the qualitative strong-zoonotic conclusion is robust.
merged_into
H-41 - Natural zoonotic spillover with no research involvement
source
S-70 - Judge Eric Stansifer's written decision
locator
  • S-70: §1 Introduction / §7.6 Conclusion (final table)
merged_from
additional_sources
—
generalization_note
Widened to also carry the complementary lab-leak-posterior framing (absorbed H-13: Eric's narrow 'GoF at WIV' lab-leak definition, P(LL) about 0.075%). H-12 and H-13 are two halves of one adjudication (P_zoo + P_LL sum to ~1), no curated observation separates them. additional_sources is empty because H-13 shares H-12's source S-70.
quote
with high confidence that zoonotic spillover is the more likely origin of sars-cov-2.

The zoonosis-favoring conclusion of one of the two mutually-agreed debate judges, reached independently of (and converging with) the co-judge. Rests on no data of its own; it is an adjudication of debater-supplied evidence.

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