Geek Confessional Thread 2024 [NOW 2026!]

[Thomas Shey]

True. But there are plenty of studies linking lead poisoning to depression and irritability that the link seems fairly solid as at least a partial reason for the decline in violent crime paralleling the decline in lead exposure.

Its one of those things where you have a strong statistical population correlation, connected with a demonstrrated probable mechanism. That's about as close to a population based causality as you're ever going to get.