Scott Alexander examines the role of slack in evolutionary systems, arguing that a balance between competition and cooperation often leads to optimal outcomes in various domains. Longer summary

Scott Alexander explores the concept of slack in evolutionary systems, using various examples to illustrate how balancing competition and cooperation can lead to optimal outcomes. He discusses how slack allows for the development of complex adaptations that might not emerge in environments of intense competition or total absence of competition. The post covers topics such as monopolies, tariffs, strategy games, stock exchanges, corporate organization, and the evolution of ideas, showing how the principle of slack applies in each case. Shorter summary

Scott examines five potential mechanisms of cultural evolution, discussing their strengths and limitations, and concludes that they don't strongly justify preserving specific cultural features. Longer summary

This post discusses various ways cultural evolution can occur, based on comments from a previous post. It explores five scenarios: super-innovations allowing one culture to dominate others, differential breeding rates between groups, evolution of subcultures, accretion of beneficial practices, and prehistoric cultural evolution. Scott analyzes each scenario, noting their strengths and limitations. He concludes that while cultural evolution has potential to be interesting, it doesn't provide a strong argument for preserving specific cultural features without additional justification. Shorter summary