"The Undoing Project" by Michael Lewis explores the collaboration between psychologists Daniel Kahneman and Amos Tversky, who revolutionized our understanding of human decision-making. Their work highlights how cognitive biases influence our choices, leading to irrational behavior even in mundane situations like tipping at restaurants. This reflects a deeper inquiry into how people assess value and make judgments based on limited information, challenging traditional economic theories of rationality.

The quote emphasizes the absurdity of people's actions when they behave as if their choices matter in contexts where they have no intention of returning. This perspective points to a larger puzzle about human behavior and the psychology behind seemingly trivial decisions. Kahneman and Tversky's insights encourage readers to examine the underlying factors that govern our everyday choices and to understand the complexities of human judgment.