trailThe WIV possessed or could have engineered a close progenitor of SARS-CoV-2
SARS-CoV-2 has a laboratory origin
The WIV possessed or had access to a bat coronavirus sufficiently similar to SARS-CoV-2 to serve as an engineering backbone
The WIV possessed RaTG13, a bat coronavirus that was the closest known relative of SARS-CoV-2 at the time of the outbreak
The WIV held undisclosed bat coronaviruses more similar to SARS-CoV-2 than those it published
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A coronavirus 96% genetically identical to SARS-CoV-2 is too divergent to serve as a practical engineering backbone
The WIV had the technical capability to engineer a SARS-CoV-2-like coronavirus
The Wuhan Institute of Virology operated reverse-genetics systems for constructing coronaviruses
The WIV engineered chimeric SARS-like coronaviruses
claim · empirical · verifiableA factual claim that could be checked directly against observation or primary records.constitution →claim page ↗︎
The WIV possessed or could have engineered a close progenitor of SARS-CoV-2
⇄ContestedCredible evidence or argument exists on multiple sides.constitution →
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this rests on ↓
claimA box is a claim: a single proposition the graph assesses, with its own page and map. Click any claim to centre the map on it.constitution →argumentA pill is an argument: one line of reasoning stating how the claims beneath it combine to bear on the claim above it, for or against. Arguments are not destinations; click their claims to explore.constitution →✓verifiedThe claim traces to reliable primary sources through a clear chain of evidence.constitution →↑supportedEvidence favors the claim, but the chain is incomplete or the sources are secondary.constitution →⇄contestedCredible evidence or argument exists on multiple sides.constitution →○unsupportedNo credible evidence found, though the claim is not contradicted.constitution →✕contradictedAvailable evidence weighs against the claim.constitution →?unknownInsufficient information to assess.constitution →◌unassessedNo current assessment — the Steward prioritises higher-importance claims, so this one is likely still queued.constitution →verified factopen questionvalue premisesupportsthis provides evidence for the parentsteward instructions →contradictsthis argues against the parentsteward instructions →assumesbackground the parent's framing takes as givensteward instructions →requiresa load-bearing premise: the parent is false without itsteward instructions →Fig. — detail falls off with distance; every claim is an address.