Incredible summarization on the topic. Chewed through this during Covid and gave me a new appreciation for the high-level implementations of economic concepts in society. Second-order thinking is a crucial skill in economics, and Sowell makes it clear that incentives drive everything. Most notably, incentives must actually encourage behavior that they were designed to implement, not 'promise' they will, something government and politicians fail to grasp even today (e.g. rent control, stimulus, etc.)