Cognitive dissonance is a theory by Leon Festinger defined as “the distressing mental state caused by inconsistency between a person’s two beliefs or a belief and an action.” Along with this theory, Festinger created three hypotheses. The second of these hypothesis is postdecision dissonance. This hypothesis states that close-call decisions can generate inner feelings of tension. This feeling of tension raises with importance of the issue, how long it took the individual to make a decision, and the level of difficulty necessary to reverse the decision. This hypothesis is present in everyday life and decisions. A very common example of this is when a person chooses a cell phone to buy. One can decide on a certain brand or model but when one of their friends or family has the other phone, there can be some features on it that they wish they had selected when they picked their phone.