Scott travels to Medjugorje, Bosnia to investigate reports of sun miracles, witnesses one himself with his wife, and develops a naturalistic explanation involving afterimages and atmospheric conditions that explains both the Medjugorje and Fatima phenomena.

Scott explores reader responses to his Fatima miracle post, finding the most promising explanation in Buddhist fire kasina meditation practices that produce similar visual phenomena, while remaining uncertain about how 70,000 untrained people could achieve advanced meditative states instantly.

A detailed investigation of the Sun Miracle of Fatima in 1917, where 70,000 people witnessed the sun appear to spin, change colors, and fall to earth, analyzing witness testimonies, skeptical explanations, and similar phenomena at other Marian apparition sites.

Scott reviews Steven Byrnes' work explaining how our perception of self and consciousness can flip between different models, similar to optical illusions, which explains phenomena like trance, hypnosis, and spiritual experiences.

Scott Alexander defends the concept of automaticity in psychology, arguing that core cognitive biases and priming effects are real, while acknowledging some claims have been overstated.

Scott Alexander explores whether people can be honestly mistaken about their own experiences, presenting counterexamples and attempting to reconcile them with the idea that we can't be wrong about our immediate subjective experiences.

Scott Alexander reports on weak correlations and inconclusive results from the latest SSC survey on optical illusions and visual perception.

Scott Alexander preregisters hypotheses for the 2018 SSC Survey, planning to explore relationships between perception, cognition, personality, and demographics.

Scott Alexander explores potential links between perception of optical illusions and cognitive styles, proposing further research to investigate these connections.

Scott Alexander hypothesizes a link between transgender identity, optical illusions, and NMDA receptor function, based on survey data and existing research on schizophrenia and autism.

The post examines Midwestern geography, debunking the author's initial impression of a grid pattern in town arrangements and humorously exploring potential 'ley lines' between cities.

Scott explains how the brain judges values relatively rather than absolutely, using optical illusions as an analogy for cognitive biases in decision-making.