In "The Undoing Project," Michael Lewis delves into the complexities of understanding human decision-making through the lens of probability and statistics. He highlights that people's grasp of numbers is often inadequate, leading to a disconnect between numerical probabilities and real-world implications. As a result, many individuals perceive these probabilities as abstract concepts rather than tangible realities that influence choices.

This lack of comprehension can create confusion and reluctance to trust statistical data. Danny, a character in the book, recognizes that this disconnection impacts how people formulate their decisions. The portrayal of probability as something merely theoretical rather than grounded in reality underscores the challenges in conveying information that could significantly affect decision-making processes.