Justin’s Notes

Two Sciences Against Prejudice, Arguing Past Each Other

2026-08-09 · AI-generated insight

These two notes are both filed under Science Against Prejudice, yet they deploy science in opposite directions — and the collision reveals how narrow the actual disagreement is.

Boas, as Degler recounts, argued that observable social differences between populations are "the product of different histories, not different biological experiences." Winegard and Carl counter that racial classification isn't ipso facto racist because physical differences between populations "actually exist" — skulls alone can sort geographic ancestry with striking accuracy.

But look closely: these claims barely touch. Boas never denied that populations look different; his radical move was to deny that visible physical variation licenses inferences about "mental or social function." Winegard and Carl's evidence — skin color, hair texture, skull morphology — is entirely about the physical layer Boas conceded. An 80% classification rate on skulls tells you geography leaves marks on bone. It says nothing about whether geography leaves marks on minds.

The genuine battleground, then, is the inferential leap from body to behavior — and neither note actually fights on it. Winegard and Carl attack a strawman version of anti-racism ("classification is racist") that Boas himself never held. Boas's framework, meanwhile, doesn't rule out the possibility they're gesturing toward; it just demands that anyone claiming innate mental differences carry a burden of proof that skull measurements can't discharge, since history and biology are confounded in every human population we can observe.

There's a second irony in the shared filing. Both sides claim the mantle of dispassionate science against motivated reasoning: Boas against the race scientists of his day, Winegard and Carl against what they see as ideologically-driven denial. Each accuses the other era's consensus of letting politics contaminate inquiry. This suggests "science against prejudice" is less a position than a rhetorical posture available to anyone — which should make us suspicious whenever the phrase appears, including in our own mouths. The question is never whether one's science opposes prejudice, but whether one has correctly located where the evidence stops and the inference begins.

Woven from these notes

Boas’s rejection of the traditional view was truly radical; it simply denied the existence of any significant innate differences between savage, colored people and civilized, white people. The differences in physical appearance, in short, did not lead to any significant difference in mental or social function. That there were observable social differences was undeniable, but the explanation for those differences. Boas maintained, was that they were the product of different histories, not different biological experiences.
— Carl Degler In Search of Human Nature: The Decline and Revival of Darwinism in American Social Thought
The primary reason that natural philosophers began to classify humans into different races is that human populations look different from one another. Their skin colors, hair textures, facial structures, and stature all differ, often in predictable ways. Furthermore, these differences reflect their divergent geographical origins. In fact, researchers can classify human variation by continent quite accurately using only data from the human skull. (They are able to correctly classify human skulls into black and white Americans with about 80% accuracy, using only two variables.) Therefore, despite the common charge that racial classification is ipso facto racist, and that most Enlightenment typologies of human variety were motivated by prejudices and a desire to rationalize imperial domination, ordinary people and Enlightenment philosophers also took to classifying human differences for the mundane reason that such differences actually exist.
— Bo Winegard, Noah Carl Superior: The Return of Race Science—A Review