Undermines· moderateORCH-E021
Warren: the MRI data provide no evidence for entanglement
- what the source states
- Warren's comment argues that the Kerskens–López Pérez paper "provides no evidence to justify this claim" of witnessed entanglement, and that the observations show only "what we already knew: the brain (and any other living tissue) is complex, multicompartmental, and imprecisely characterized by MRI." In a reply published in the same issue, Kerskens and López Pérez maintain that their observations cannot be explained by the classical intermolecular multiple-quantum-coherence mechanism Warren invokes.
- what we infer
- A substantive methodological objection from someone with standing to make it, published in the appropriate venue — this is how a technical dispute should look. The general point is well taken: NMR signals in heterogeneous living tissue are precisely the regime in which classical multi-compartment effects can imitate exotic ones, and entanglement witnesses require ruling those out affirmatively rather than by elimination. The authors' reply is not obviously wrong either, and this import has no basis for adjudicating a technical NMR dispute. Recorded as genuinely unresolved, which is why ORCH-C026 carries reviewState `disputed`.
- limitations
- A comment, not an independent replication attempt — the decisive experiment has not been run.
- Authors replied specifically to the mechanism Warren proposed; the exchange is unresolved on the public record.
- This project has no independent basis for adjudicating the technical NMR question.