System 1’s central role is keeping an updated collection of information in one’s mind, as they happen on a daily basis. In effect, the brain has the capability of deducing normality from known events based on several factors. Evaluating regularity is a process and is set up on one’s mind as a base on which other actions are events are assessed. In this chapter, the author has made significant attempts to juxtapose surprise to normality. Also, Kahneman illustrates how expectations in one’s mind relate with normality. He uses a range of illustrations to elucidate how the mind can detect a norm and a surprise, as well as how an individual can easily tell what is anticipated to occur in the future. Furthermore, Kahneman explains the capability of the mind to use norms in determining causes and intentions.