In "The Undoing Project," Michael Lewis explores the ways in which the human mind processes information and makes decisions. He highlights how our expectations significantly shape our perceptions, making us prone to overlook unexpected information while readily accepting what aligns with our preconceived notions. This tendency can lead to biases and misjudgments in our thinking and decision-making processes.

Lewis illustrates that this cognitive limitation affects various aspects of life, from personal choices to broader societal decisions. By understanding these psychological patterns, we can become more aware of our biases and strive for better judgment in our daily lives, ultimately enhancing our decision-making capabilities.