If you are thinking about buying a new car, you suddenly see people driving them all over the roads. If you just ended a long-time relationship, every song you hear seems to be written about love. If you are having a baby, you start to see them everywhere.

Confirmation bias is seeing the world through a filter, thinking selectively.

The examples above are a sort of passive version of the phenomenon. The real trouble begins when confirmation bias distorts your active pursuit of facts.

~ David McRaney from, Confirmation Bias

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