A diverse collection of links on topics ranging from gerrymandering and health insurance to tech bubbles and extinction risk estimates, presented with minimal commentary. Longer summary

This post is a collection of various interesting links and news items. It covers a wide range of topics including gerrymandering, health insurance effects, corporate profits, drug pricing, media bias, ketamine research, tech bubbles, seasonal effects on mental health, FDA drug importation plans, research on sex differences, carbon capture technologies, birth order effects, waist-to-hip ratio preferences, extinction risk estimates, life sciences research, Google algorithm changes affecting health sites, online economy intricacies, fluoride effects on IQ, and many other diverse subjects. The post presents these items without much commentary, leaving readers to explore further on their own. Shorter summary

Scott Alexander criticizes branded combination nootropics, explaining why they are often ineffective or harmful, and advises careful individual experimentation with single substances instead. Longer summary

Scott Alexander criticizes branded combination nootropics, arguing they are often poorly designed and potentially harmful. He begins by mocking the ridiculous names and exaggerated claims of many such products, then explains why even well-intentioned combinations are problematic. The post discusses how nootropics affect individuals differently, making one-size-fits-all approaches ineffective. Scott emphasizes the importance of careful individual experimentation with single substances, rather than relying on pre-made combinations. He also cautions against assuming synergistic effects between different nootropics, noting that even well-studied psychiatric drug combinations often fail to show benefits. The post concludes by advising readers to approach nootropics cautiously and individually, rather than relying on branded combinations. Shorter summary

Scott Alexander critiques mass-produced medical recommendations, showing how they can oversimplify or misrepresent scientific evidence using vitamin D and niacin as examples. Longer summary

Scott Alexander critiques mass-produced medical recommendations, focusing on vitamin D and niacin supplements. He argues that popular sources like information graphics and websites often oversimplify or misrepresent the scientific evidence. Using vitamin D as an example, he shows how counting only positive studies can lead to misleading conclusions, as many larger studies and meta-analyses have found no benefit for cancer prevention or general health. He then discusses niacin, once thought beneficial but later found to be potentially harmful. Scott emphasizes the importance of considering all available evidence and being cautious about simplified recommendations. Shorter summary