A deep dive into the Book of Abraham, focusing on how Joseph Smith's translations of Egyptian papyri were definitively proven false by Egyptologists, yet Mormonism continues to thrive—raising questions about whether instrumental rationality trumps epistemic rationality. Longer summary

This review examines the Book of Abraham, a Mormon scripture that Joseph Smith claimed to translate from Egyptian papyri purchased in 1835. The post methodically presents evidence showing Smith's translation was fraudulent: Egyptologists identified the papyri as standard funerary texts (the Book of Breathings for a priest named Hôr, dated 150 BC), not Abraham's writings from 2000 BC; Smith's interpretations of the three facsimiles contradict expert consensus (including identifying the god Min's erect phallus as God on his throne); and the rediscovery of the original papyri in 1967 confirmed they don't match Smith's translation. The author also covers Smith's history of treasure-digging with seer stones, the fraudulent Kirtland Anti-Banking Company, and the forged Kinderhook Plates. Despite all this evidence, Mormonism continues to grow and produces highly successful, charitable, tight-knit communities. The post concludes by exploring how a demonstrably false belief system can be instrumentally rational through costly signaling, community cohesion, and psychologically optimized doctrines that give members purpose and identity. Shorter summary