In this chapter, Kahneman expounds the activities that an individual has the capability of controlling when thinking. Necessary mental activities such as reading require minimum activeness of the brain. System 2 encompasses a series of goings-on that tends to compete against one another. Usually, the frequency of these activities manages to outrun one another in that the result is one concentrating on one action while temporarily or permanently ignoring others. The mind flow is not so much of a will as an explicate intuition of the mind by surrounding events.