Feeling Rational - LessWrong - lesswrong.com  ## Metadata - Author: **lesswrong.com** - Full Title: Feeling Rational - LessWrong - Category: #articles - URL: https://www.lesswrong.com/posts/SqF8cHjJv43mvJJzx/feeling-rational ## Highlights - A popular belief about “rationality” is that rationality opposes all emotion—that all our sadness and all our joy are automatically anti-logical by virtue of being feelings. Yet strangely enough, I can’t find any theorem of probability theory which proves that I should appear ice-cold and expressionless. - Tags: #rationality - When people think of “emotion” and “rationality” as opposed, I suspect that they are really thinking of System 1 and System 2—fast perceptual judgments versus slow deliberative judgments. System 2’s deliberative judgments aren’t always true, and System 1’s perceptual judgments aren’t always false; so it is very important to distinguish that dichotomy from “rationality.” Both systems can serve the goal of truth, or defeat it, depending on how they are used