Most human behavior is signaling (Robin Hanson)

Abstract

Human behavior includes an array of activities that appear strange from the viewpoint of most animals, which are typically explained by invoking learning or health benefits, often without solid evidence for either. The signaling framework suggests many seemingly strange or maladaptive behaviors are signals of underlying qualities, providing indirect benefits by influencing the behavior of others. For instance, conspicuous consumption of medical services can be a signal of caring, rather than a reflection of individual health status. Similarly, the time, effort, and money people spend schooling can function as a signal of intelligence, rather than reflecting a pursuit of knowledge. – AI-generated abstract.