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Unbekoming's avatar

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Marc G. Wathelet, who identifies as a molecular biologist, raises points worth engaging directly.

On NMR visualization: NMR spectroscopy measures how nuclei respond to magnetic fields. Computational models interpret those signals into structural representations. The essay's point stands: every verification method detects electrical or magnetic properties and interprets them through frameworks that assume the structure being sought. NMR produces data interpreted as DNA structure—it doesn't image the molecule directly in living systems. The 2012 direct imaging attempts, after seven decades of certainty about DNA's structure, produced images requiring significant interpretation to reconcile with the canonical double helix.

On industry scale as validation: The biotech industry's size demonstrates commercial success, not theoretical accuracy. Empirical trial-and-error produces useful outputs regardless of whether underlying frameworks accurately describe biological mechanisms. Bloodletting persisted for millennia with institutional success and patient testimonials. The relevant question is whether claimed mechanisms survive blind validation. The Dror study says no. The NIST study says no. The German paternity research—95.8% of children matching with known non-fathers under standard protocols—says no.

On PCR specificity: Marc states it "never amplifies something that is not there." Early 2020 primer sets produced positives in negative controls with nuclease-free water. Jamie Andrews' independent testing found positive results from ionic household materials. These results need accounting for.

On ancestry matches: Te Reagan found a half-sister through Ancestry. Pattern recognition can produce correlations that align with known family structures without validating the theoretical mechanism claimed. Ancestry companies have returned specific human ethnic percentages from dog DNA. Pet DNA companies have returned breed percentages from human samples. The tests find patterns. What those patterns measure is the question.

pobrecollie's avatar

There was a link to this site in Jamie Andrews comments, which covers much of the same science, or lack thereof. It's very well written and referenced (personally I found it easier to follow that J.A.'s articles). There are only a handful of articles on the site, I would suggest checking them all.

https://criticalcheck.wordpress.com/2021/12/15/dna-discovery-extraction-and-structure-a-critical-review/

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