In "The Bias That Divides Us," Keith E. Stanovich delivers a compelling exploration into the heart of our societal discord, challenging the popular narrative of a post-truth era to unveil the deeper, more insidious culprit: myside bias. With precision and insight, Stanovich unravels the complex ways in which this form of bias infiltrates our politics, not through a collective dismissal of truth, but from an unwavering belief that truth is the exclusive domain of those who share our views. This foundational misunderstanding fuels the fire of political polarization, driving wedges within societies and communities worldwide. Drawing upon a rich tapestry of scientific insights, Stanovich exposes myside bias as a unique cognitive outlier, immune to the safeguards of intelligence or critical thinking skills. This bias does not discriminate, ensnaring the cognitive elite and layperson alike, creating blind spots that render even the most rational among us susceptible to skewed perceptions. Through a meticulous examination of its origins, manifestations, and the challenges it presents to collective understanding and dialogue, "The Bias That Divides Us" offers not just a diagnosis of our divided times but a critical step toward bridging the chasms that separate us, urging a reevaluation of how we perceive truth, engage with differing perspectives, and the vital importance of reinstating trust in the institutions dedicated to the pursuit of knowledge.