Are strong opinions that useful?
Firmly held ideas don’t have a great track record.
Strong opinions have little to commend them. They’re correlated with high blood pressure, anxiety and depression. Psychological studies say they are associated with ego rather than evidence and can be blamed for poor decision-making in times of stress.
Yet we all have opinions, some of them quite useful. Where is the line between dysfunctional self-belief and a healthy point of view?