Polarization arises from the fundamental human tendency to assume that others share our internal model of reality, despite the fact that every brain constructs a unique experience of the world. Because our internal models are often incomplete—as demonstrated by the illusion of explanatory depth and the Dunning-Kruger effect—we mistakenly view those with differing opinions as misinformed or malicious. This cognitive bias is compounded by our neurobiological predisposition to favor in-groups, which limits empathy for out-groups. While these tribal tendencies have historically fueled conflict, the empathic divide can be narrowed by acknowledging personal biases, resisting dehumanization, and intentionally entangling group memberships. By adopting intellectual humility and engaging in genuine dialogue, individuals can move beyond the comfort of certainty to better navigate a pluralistic world where no single perspective holds a monopoly on the truth.
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