Pachter Lists More Flaws in Nucleus Ads: Implausible R² Matches, Mismatched Cohorts
lpachter · x · 2026-09-20
Wrapping the thread, Pachter lists further problems in Nucleus's advertising: population vs within-family height R² equal to three decimal places, mismatched cohorts, and arithmetic like "14 = 7". Applying published assortative-mating corrections would shrink the claimed IQ gain by 20%, and he asks why Nucleus, with 20,000 sibling pairs, didn't produce a more exact estimate. "Is this really truthful advertising?"
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