Scott Alexander shares a diverse collection of links and brief discussions on topics including AI developments, social trends, scientific studies, and cultural phenomena. Longer summary

This post is a collection of diverse links and brief discussions on various topics. Scott Alexander covers AI developments, historical events, social trends, scientific studies, and cultural phenomena. He touches on subjects like AI safety concerns, social media effects on mental health, mask efficacy debates, and potential shifts in 'woke' culture. The post also includes interesting anecdotes, thought experiments, and statistical analyses on topics ranging from medieval Mali to modern dating dynamics. Shorter summary

Scott Alexander presents a diverse collection of 49 links and brief commentaries on various topics, ranging from cultured meat to AI developments and current events. Longer summary

This post is a collection of 49 diverse links and brief commentaries on various topics, including cultured meat, government policies, scientific studies, historical anecdotes, AI developments, and current events. The author, Scott Alexander, provides his thoughts and observations on each item, often with a mix of humor, skepticism, and analysis. The links cover a wide range of subjects from technology and economics to politics and culture, reflecting the broad interests of the blog's readership. Shorter summary

Scott Alexander corrects and expands on the story of Omegaven, a life-saving infant nutritional fluid, using it to illustrate systemic issues with medical regulation and drug approval. Longer summary

Scott Alexander revisits a story about Omegaven, a fish-oil-based nutritional fluid for infants, correcting some details from his previous post. He explains how the fluid was discovered to prevent liver disease in infants requiring IV nutrition, and the challenges faced in getting it approved by the FDA. While the FDA comes off relatively well in the story, Scott argues that the real problem is the systemic hurdle of drug approval that makes everything in medicine illegal by default. He discusses how this hurdle makes scientific discoveries harder and potentially costs lives, even when many individuals involved are trying their best. Shorter summary

Scott Alexander presents a detailed guide on depression, covering its causes, symptoms, and various treatment options, including lifestyle changes, therapies, medications, and other interventions. Longer summary

Scott Alexander provides a comprehensive guide on depression, covering its causes, symptoms, and various treatment options. He discusses lifestyle changes, therapies, medications, supplements, and other interventions like TMS and ECT. The post offers practical advice on how to approach treatment, including specific regimens for different situations, and guidelines on how long to continue treatment once it starts working. Shorter summary

Scott Alexander critically examines a new theory on antidepressant mechanisms, expressing skepticism while acknowledging its potential significance if proven true. Longer summary

Scott Alexander reviews a recent study proposing a new theory for how antidepressants work, which suggests they bind directly to TrkB receptors rather than acting through serotonin. He explains the study's findings and their potential implications, but expresses skepticism about the theory. Scott outlines several reasons why he finds the new theory unconvincing, including existing evidence supporting the serotonin hypothesis, issues with the study's claims about drug accumulation, and expert opinions on the difficulties of TrkB research. He concludes by stating he will stick with the conventional theory for now, while remaining open to future developments. Shorter summary

Scott Alexander examines melatonin's effects, proper dosage, and uses for sleep disorders and circadian rhythm issues, emphasizing its dual role as a hypnotic and chronobiotic. Longer summary

Scott Alexander provides an in-depth analysis of melatonin, its effects, and proper usage. He explains that melatonin functions as both a hypnotic (inducing sleep) and a chronobiotic (shifting circadian rhythms). The post covers optimal dosing (0.3 mg, much lower than commonly available doses), use in treating circadian rhythm disorders, jet lag, and potential connections to other psychiatric conditions like seasonal affective disorder and depression. Scott also discusses personal experiences with melatonin, including its tendency to cause early waking and vivid dreams in some people. Shorter summary

Scott explores the theory that clozapine's unique effectiveness in treating schizophrenia may be due to its combined action on dopamine and glutamate systems, potentially opening avenues for safer treatments. Longer summary

This post explores why clozapine is considered uniquely effective among antipsychotic drugs for treating schizophrenia. Scott discusses recent research suggesting clozapine's superiority may be due to its action on the glutamate system, specifically as an NMDA receptor agonist, in addition to its dopamine-blocking effects. He explains that adding NMDA modulators to other antipsychotics improves their efficacy, but not when added to clozapine, possibly because clozapine already has this effect. The post speculates that if this theory is correct, it could lead to safer treatments combining standard antipsychotics with NMDA agonists, avoiding clozapine's serious side effects. However, Scott notes that more research is needed to confirm this hypothesis and overcome regulatory hurdles. Shorter summary

Scott reviews 'Unlearn Your Pain', finding its psychosomatic theory of chronic pain intriguing but overstated, while acknowledging the book's techniques may still be helpful via placebo effects. Longer summary

Scott reviews the book 'Unlearn Your Pain' by Dr. Howard Schubiner, which argues that most chronic pain is psychosomatic and can be cured through psychological techniques. While Scott finds some of the book's claims intriguing, he is skeptical of its more sweeping assertions about the psychological origins of pain. He examines the evidence for and against psychosomatic theories of chronic pain, concluding that while psychological factors likely play a role, the book overstates its case and ignores contradictory evidence. Scott suggests the book's techniques may work primarily through placebo effects rather than by addressing repressed trauma as claimed. Shorter summary

A collection of interesting links covering various topics from scientific studies and economic policies to cultural oddities, with particular focus on deworming program controversies and workplace discrimination research. Longer summary

This is a link roundup post where Scott shares various interesting articles and studies. The topics covered range from scientific discoveries to economic policies, from social experiments to cultural oddities. He discusses several major studies and their implications, including birth order effects, workplace discrimination in France, and the controversy around deworming programs. The post also includes various curiosities like botanical bioregions, moon naming conventions, and Chinese stock market intervention, all presented with Scott's characteristic mix of insight and humor. Shorter summary

Scott Alexander dissects a hoax chocolate study to critique common misconceptions about nutrition science, study design, and statistical methods. Longer summary

Scott Alexander analyzes a viral study claiming chocolate aids weight loss, which was revealed as a hoax designed to expose poor science journalism. He critiques four common but incorrect conclusions drawn from this incident: that people were gullible for believing it, that nutrition isn't a real science, that studies always need high sample sizes, and that p-values should be eliminated. Scott argues that there is previous research supporting chocolate's health benefits, that nutrition science uses multiple study types to build evidence, that sample size importance depends on the effect being studied, and that p-values have their place in research. He agrees with the fifth conclusion that science journalism should be trusted less, but notes that some sources like Wikipedia and specialized blogs are more reliable. Shorter summary

Scott Alexander reviews an article on heroin addiction treatment, advocating for suboxone use while criticizing ineffective rehab programs and regulatory obstacles. Longer summary

Scott Alexander reviews a Huffington Post article on heroin addiction treatment, focusing on the effectiveness of suboxone (buprenorphine) compared to conventional rehab programs. He highlights the poor performance and sometimes abusive practices of many rehab centers, contrasting them with the proven success of suboxone treatment. The post then discusses two major obstacles to wider suboxone use: strict government regulations and resistance from the rehab industry. Alexander uses this discussion to reflect on broader themes such as the value of tight communities, the failures of both free market and government approaches in this area, and the superiority of biological solutions over social ones in addressing addiction. Shorter summary

Scott Alexander examines the claim that '90% of medical research is false', arguing it's an exaggeration while acknowledging real issues in the field. Longer summary

Scott Alexander critiques the popular claim that '90% of medical research is false', which is often attributed to John Ioannidis. He argues that this statement, while pointing to important issues, creates more panic than warranted. Scott analyzes Ioannidis' work, showing that the 90% figure is likely misinterpreted from various sources. He explains that the accuracy of medical research varies greatly depending on the type of study, with large randomized trials and meta-analyses being much more reliable. Scott also discusses how multiple studies on the same topic can greatly increase confidence in results, and how doctors' beliefs are typically based on substantial evidence rather than single studies. He concludes by acknowledging the problems in medical research while cautioning against overly cynical interpretations. Shorter summary