“When you pay attention to a threat, you worry—and the decision weights reflect how much you worry. Because of the possibility effect, the worry is not proportional to the probability of the threat. Reducing or mitigating the risk is not adequate; to eliminate the worry the probability must be brought down to zero.” WorryThreatsPossibility EffectThreat MitigationThreat Reduction Book:Thinking, Fast and Slow Source: Thinking, Fast and Slow