The inclination to selectively accept information that confirms pre-existing beliefs, while disregarding contradictory evidence, represents a significant cognitive bias. An example would be an investor only reading articles that support a stock they own, while ignoring negative analyses. This behavior distorts objective assessment and hinders balanced decision-making.
This tendency can strengthen convictions and provide a sense of psychological comfort. Historically, it has played a role in reinforcing cultural norms and solidifying group identity. However, its uncritical application can lead to polarization, the spread of misinformation, and resistance to factual updates, ultimately limiting intellectual growth and hindering objective understanding.