The quote highlights a fundamental limitation of the human mind regarding perception and expectation. It suggests that people often struggle to notice things that are outside of their preconceived notions while being overly quick to recognize and affirm what they already believe. This cognitive bias leads to a distorted understanding of reality, where individuals may overlook important information that contradicts their views.

In "The Undoing Project," Michael Lewis explores how this tendency affects decision-making and relationships. The book recounts the collaboration between psychologists Daniel Kahneman and Amos Tversky, whose groundbreaking work on cognitive biases has transformed the fields of psychology and behavioral economics. Their findings emphasize the importance of recognizing these biases to improve our judgment and make more informed choices.