This folder collects primary readings on a long-running and unresolved tension: the
claim, common in the social sciences and public discourse, that human "race" is
fundamentally a social construct with no meaningful biological basis, set against
findings from population genetics that genetic ancestry is structured, measurable,
and clinically and historically consequential. The materials here are not curated
to advance a single thesis — they are intended to expose the strongest version of
each side of the argument, including the places where the two framings genuinely
disagree about empirical facts rather than only about terminology.
The pieces are arranged below in chronological order, which roughly tracks the
shift from a settled mid-century social-science consensus toward a more contested
present in which large-scale genomic data, machine learning, and ancient-DNA
results have all reopened questions that were once treated as closed.
Statistical critique of the widely-cited claim that within-group genetic variation
exceeds between-group variation and therefore racial categories are biologically
meaningless. Edwards argues that this inference does not follow once correlations
across many loci are considered jointly.
A population geneticist argues from inside the field that ancestry-associated
differences between populations are real and increasingly measurable, and that
refusing to discuss them cedes the conversation to bad-faith actors.
Historical account of how the post-war UNESCO race statements were drafted,
who shaped them, and the political constraints that produced the dominant
twentieth-century framing of race as a social rather than biological category.
Deep-learning models recover self-reported race from radiological images at
high accuracy, even when human radiologists cannot identify any signal — a
finding that complicates a clean separation between "social" race and
biologically embodied signal.
Genome-wide evidence of recent, regionally-specific directional selection across
West Eurasian populations, including signals on pigmentation, immune response,
and metabolic traits — a concrete example of the kind of result Reich anticipated.