GPT-6 Pro reruns crime research: GTA V's 2013 launch tied to violence dips in four regions
emollick · x · 2026-10-27
Ethan Mollick had GPT-6 Pro autonomously download fresh crime data and extend prior work on the 'violent games reduce crime' hypothesis.
- GTA V's September 2013 launch coincided with drops: -3.4% broad violence in seven US cities over the first 7 days (-3.0% at 28 days); Vancouver person offences fell -27.6%, Australia NSW non-domestic assault -9.2%, Colombia assault victims -4.7%.
- The equal-context index (geometric mean across sites) was -11.8% at 7 days and -8.7% at 28 days. The author stresses this is exploratory — bars are envelopes of finite historical comparisons, not confidence intervals — and results for other games are more ambiguous.
Related event: GPT-6 Pro Replicates Study Linking GTA 5 Launch to Lower Violent Crime(2 posts)→
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