US federal prison population

Between 2015 and 2022, the number of crop circles reported in the United Kingdom and the US federal prison population moved together with a correlation that suggests either that aliens are committing federal crimes or that the American carceral system somehow influences agricultural art in Wiltshire. The correlation is 0.966 across eight data points, which is strong enough to take seriously and absurd enough that you absolutely should not. One pictures an extraterrestrial reviewing its sentencing guidelines.

The US federal prison population declined from about 197,000 in 2015 to roughly 158,000 by 2022, driven by sentencing reform (the First Step Act of 2018), early release programs, and pandemic-related decarceration. Crop circle reports in the UK have also declined during this period, though for entirely different reasons: the people who create them are aging out of the hobby, landowners have become more vigilant, and the cultural moment that made crop circles fascinating in the 1990s has largely passed. Both trends are measuring the slow deflation of phenomena that peaked in an earlier era—mass incarceration and mysterious field art—and happen to be declining at similar rates for completely unrelated reasons.

Eight years of crop circles and prisoners declining together is the kind of correlation that makes you want to believe in something—aliens, conspiracy, cosmic justice—but the truth is that two unrelated things can shrink at the same rate simply because everything eventually does. The circles are fewer, the prisons are emptier, and the connection between them exists only on a chart that no one asked for.