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2,007 essays

Ontology Of Psychiatric Conditions: Taxometrics

Scott Alexander examines taxometrics in psychiatry, finding that most mental health conditions are dimensional rather than categorical, and discusses the implications for diagnosis and treatment.

31 min read 4,710 words

Should People Avoid Whole-Body Screening Info?

Scott analyzes whether whole-body screening MRIs are worth it by doing a detailed cost-benefit calculation, finding they cost about $108,000 per quality-adjusted life-year saved (right around the threshold of cost-effectiveness), and argues that while rich people immune to anxiety might benefit, most people claiming to be rational about medical decisions probably aren't.

A Buddhist Sun Miracle?

Scott Alexander reports on a 1990s Buddhist sun miracle in Bangkok that closely resembles the famous 1917 Fatima miracle, suggesting sun miracles may be a specific psychological phenomenon related to meditation practices rather than divine intervention.

Know Your Amphetamines

Scott Alexander examines the history, chemistry, and efficacy of various amphetamine-based ADHD medications, comparing their strengths and weaknesses.

22 min read 3,345 words

Links For February 2026

A monthly collection of diverse links covering AI developments and regulation, COVID origins debates, healthcare policy, cultural phenomena, scientific research, and internet curiosities, maintaining Scott's characteristic blend of serious analysis and entertaining observations.

Contra Skolnick On Schizophrenia Microbes

Scott Alexander refutes Stephen Skolnick's theory that schizophrenia is caused by gut microbes rather than genetics, showing why the evidence better supports schizophrenia being a complex genetic neurodevelopmental disorder.

11 min read 1,619 words

Extreme Rationality: It's Not That Great

Scott argues that "extreme rationality" (x-rationality) - the formal study of rationality beyond normal intelligent thinking - provides much less practical benefit than the rationalist community believes, estimating a correlation of only 0.1 with success.

16 min read 2,477 words