AI ClaimsRapid review

Steven Pinker · 2011

The Better Angels of Our Nature

Why Violence Has Declined

Cover via Open Library

Rough AI truth score

58/100

The modern decline in many forms of violence is real; its depth in prehistory, statistical inevitability, and grand causal story are much less secure.

Based on three central claims · medium-low confidence

The three claims

01Mostly supported

Rates of homicide and many forms of interpersonal violence have declined dramatically over the long run.

Historical homicide series show a large European decline and modern data support lower rates in many societies. Early records are selective, definitions change, and the global generalization is stronger than the best time series.

02Mostly supported

War and organized violence have declined, especially in the modern and post-1945 periods.

Battle deaths and interstate war fell markedly after the world wars, especially per capita. Statistical work cautions that extreme wars are rare, heavy-tailed events, so the record was not yet long enough to establish an irreversible regime change.

03Weak

States, commerce, feminization, cosmopolitanism, and reason explain the broad decline in violence.

Several proposed mechanisms are plausible and locally evidenced, but the book's five-part causal package is not identified as a unified explanation. State formation can suppress private violence while producing coercion and war, and prehistoric comparisons are especially fragile.

Other claims worth checking
  • Non-state societies were much more violent than states.
  • Public perception systematically misses improvements because bad events remain salient.

What this number means. It is an AI-generated first-pass judgment of three central factual or causal claims—not a rating, exhaustive fact-check, or human peer review. Claim credits are 100% for supported, 75% for mostly supported, 50% for mixed, and 25% for weak, then averaged and rounded. Lower confidence means the score should move more as better evidence arrives.

Method three-central-claims/0.1.0 · checked 2026-09-01 · 3/3 selected claims assessed · method and source audit