The British banking association organizes a training course every year to help bank staff identify counterfeit banknotes. During the training, students can't touch any counterfeit banknotes. They use real banknotes during training and talk about the characteristics of real banknotes in class. Experts explain that students get used to the feeling of real banknotes through repeated contact with real banknotes, fingers and eyes. Once they encounter counterfeit banknotes at work in the future, they will feel very uncomfortable.  Although they know nothing about the characteristics of counterfeit banknotes, they subconsciously tell them: this is not real banknotes! according to statistics, the staff who have received this training have much better recognition ability of counterfeit banknotes.
intended to illustrate that:
When information is missing, we need to rely more on intuition