This is one of the most influential books in modern economics. But first of all, it’s just this list of incredibly clever experiments, where Kahneman and Tversky just asked their undergraduates very simple hypothetical questions. They took these very simple protocols and transformed them into the first really hard proof that people consistently violate the expectation of rational agents. That we don’t think like homo economicus at all. Irrationality is embedded deep into our operating system.