Scott Alexander compares two contrasting models of how social movements gain or lose respectability, using examples from gay rights and environmental issues to explore their implications. Longer summary

Scott Alexander explores the concept of 'respectability cascades' in social movements, comparing two contrasting models. The first model, exemplified by the gay rights movement, suggests that when less respectable individuals publicly support a cause, it gradually becomes more acceptable for increasingly respectable people to join. The second model, illustrated by issues like endocrine disruptors and immigration, suggests that when disreputable people champion a cause, it becomes toxic and respectable people avoid it. Scott discusses the strategic implications of these models, particularly for his own interest in protecting scientific integrity from regressive leftism. He considers various factors that might determine which model applies in a given situation, such as the initial level of taboo, the likeability of supporters, and the availability of alternatives for supporters. Shorter summary