Scott defends his argument that economic growth significantly increases happiness against Pritchard's critique, arguing she underestimates income effects and overestimates redistribution's potential while misunderstanding liberalism's respect for individual agency. Longer summary

Scott Alexander responds to Cassie Pritchard's critique of his defense of liberalism and economic growth. He argues that Pritchard severely underestimates the importance of income effects on happiness by dismissing comparisons like 'being a full-time caregiver' as trivial, when these are actually profound life changes. Scott defends his position that economic growth matters enormously for happiness by providing multiple anchors (marriage vs divorce, weekday vs weekend) and argues that redistribution alone cannot achieve the scale of improvement that growth provides. He addresses Pritchard's various objections including the envy hypothesis, the Easterlin paradox, and claims about policy durability, ultimately defending liberalism as respecting human agency and individual choice rather than requiring top-down government direction of all aspects of life. Shorter summary

Scott Alexander reviews Lantern Bioworks' Lumina, a genetically modified bacterium designed to prevent tooth decay, discussing its science, safety, and commercialization plans. Longer summary

Scott Alexander discusses Lantern Bioworks' new product, Lumina, a genetically modified bacterium designed to prevent tooth decay. The post covers the science behind the product, its origins, usage, potential risks, and the company's plans for commercialization. Scott explains the genetic modifications made to the bacterium, addresses safety concerns, and discusses the regulatory path Lantern is pursuing. The article also touches on the product's pricing strategy and availability. Shorter summary