We’re not nearly as rational as we like to believe. When we face an uncertain situation, we fail to evaluate the information or to look up relevant statistics carefully.
Instead, we depend on our mental shortcuts which may lead us to make rash decisions.
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We often assume that intelligence guards against bias. Its why those with higher S.A.T. scores think they are less likely to make universal thinking mistakes.
However, smarter people are more vulnerable to these thinking errors.
When we assess ourselves for biases, we tend to engage in elaborate introspection. The problem with the introspection approach is that the driving forces behind biases remain largely invisible to self-analysis and t is also impermeable to intelligence.