Scott analyzes play money and reputation systems in prediction markets, discussing their designs, challenges, and potential improvements. Longer summary

Scott Alexander discusses the design and effectiveness of play money and reputation systems in prediction markets, focusing on Metaculus and Manifold. He explores the trade-offs between absolute and relative accuracy, zero-sum and positive-sum scoring, and the challenges these systems face. Scott points out that reputation systems often fail to provide actual reputation benefits, and play money systems struggle with market inefficiencies due to limited incentives. He suggests potential improvements, such as offering interest-free loans for specific markets, to address these issues. Shorter summary

Scott Alexander reviews 'Inadequate Equilibria' by Eliezer Yudkowsky, a book exploring systemic failures, decision-making, and the limits of social consensus. Longer summary

Scott Alexander reviews Eliezer Yudkowsky's book 'Inadequate Equilibria', which explores why bad situations persist despite pressure to improve them, when to trust social consensus vs. personal reasoning, and the pitfalls of overusing the Outside View in decision-making. The book offers a framework for analyzing systemic failures and inefficiencies, but Scott finds its treatment of the Outside View somewhat disappointing. He recommends reading the book despite its flaws, citing its thought-provoking nature and useful conceptual toolbox. Shorter summary