Bryan Johnson· Author
Looking back though, the removal of lead from gasoline in the 1980s was correlated with an average IQ uh increase of 2 to 5 points.
Loading…
The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
Looking back though, the removal of lead from gasoline in the 1980s was correlated with an average IQ uh increase of 2 to 5 points.
Every Sunday: the week’s new conflicts and verdict changes — and nothing else.
Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.