We can train ourselves to be better at knowing when we are wrong

One person not following the herd

Sometimes we suspect we are wrong

Klaus Vedfelt/Getty

No one can be right all the time – but it turns out we can get better at judging when we might be wrong.

Knowledge about the accuracy of our knowledge is an ability called metacognition. Requiring self-awareness and introspective judgements, it is used in many everyday decisions, such as those about our social lives, studying or finances. For instance, we might decide to invest in a new venture because it seems promising, but choose not to risk much money because we realise we might be wrong.

People naturally vary …