Scott updates his stance on marijuana legalization based on new data showing increased traffic accidents, but remains uncertain due to the complexity of the issue. Longer summary

Scott Alexander revisits his previous analysis of marijuana legalization, focusing on its effects on road traffic accidents. New studies show a 5-6% increase in car crashes and fatalities in states with legalized marijuana, contradicting his earlier prediction of a decrease. This shifts his assessment from slightly positive to slightly negative. However, he emphasizes the weakness of the math and the many assumptions involved. The post also considers other factors like people's enjoyment of marijuana, its comparison to alcohol and SSRIs, potential cancer risks, and tax implications. Scott concludes without a firm position, acknowledging the complexity of the issue. Shorter summary

A diverse collection of links covering recent studies, news stories, and interesting facts, ranging from scientific research to policy debates to unusual historical events. Longer summary

A link roundup post covering various topics from scientific studies to current events. The post includes discussions about studies on bottled water bans, birth month effects on health, probiotics and social anxiety, Mexican drug cartels, intelligence studies, and climate change. It also covers interesting stories like Pakistan's transgender tax collectors, a 1910s plan to introduce hippo ranching in America, and various policy discussions around gun violence, university regulations, and economic studies. The post maintains a light tone while discussing serious topics, often adding humorous asides or interesting historical facts. Shorter summary

Scott shares an eclectic collection of interesting links he found online, covering topics like economics, urban planning, science and psychology, with his own commentary added. Longer summary

This is a collection of interesting links and articles Scott found online. The topics range from economics and social systems, through urban planning and science, to education and psychology studies. The post includes studies about gender discrimination, nuclear power safety statistics, and the effects of moderate drinking on health. Scott adds his own commentary and analysis to many of the links, often with a touch of humor or irony. Shorter summary