The blurriness of racial categories (fuzzy boundaries between groups) acts as noise in detecting genetic IQ differences, not as artificial signal; if genetic differences exist, they should survive this noisy categorization, whereas environmental-only explanations might be confounded by racial classification errors.
causalpending
Speaker
Charles MurrayEvidence Quote
“the blurriness of race is noise in the signal it the blurriness of race is not going to to artificially make it look as if there are genetic differences in IQ it's going to obscure any such uh genetic differences”
Source
Race and IQ — Sam Harris and Charles Murray Set the Record Straight on Intelligence Testing— Motte & BaileyCreated: 8/10/2026, 9:51:49 PM
My Notes
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