Scott Alexander examines the concept of 'light water' and its potential health benefits, critically analyzing various arguments while expressing fascination with this unexpected area of scientific inquiry.

Scott Alexander analyzes the evolving narrative around a news story about ivermectin overdoses in Oklahoma hospitals, illustrating how cognitive biases and media dynamics can distort information.

Scott Alexander proposes that confirmation bias might be a misapplication of normal Bayesian reasoning rather than a separate cognitive phenomenon.

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

A fictional G.K. Chesterton essay defends AI risk concerns against criticisms, arguing that seemingly fantastical ideas often become reality and that contemplating the infinite leads to practical progress.

Scott Alexander critically examines pharmacogenomic testing for antidepressants, particularly the GeneSight test, expressing skepticism about its current effectiveness and validity.

Scott Alexander critiques a Buzzfeed article skeptical of growth mindset research, arguing that while skepticism is warranted, more robust evidence is needed to disprove the theory.

Scott Alexander critiques a study claiming to have found biomarkers for suicide risk, arguing that the results are overstated and such a test would have limited clinical utility even if accurate.

Scott Alexander explains how to interpret 23andMe genetic data using SNPedia, listing various SNPs and their alleged effects while emphasizing the unreliability of such interpretations.