In his analysis of perceived quality of experience, social scientist Alex Michalos highlights that individuals gauge their satisfaction through the evaluation of three critical gaps. The first gap is between personal desires and current possessions, reflecting the difference between what one wishes to achieve and what one actually has. This gap influences personal contentment significantly.

Additionally, Michalos discusses the second gap, which compares an individual's situation to that of others in similar positions, potentially creating feelings of inadequacy or envy. Lastly, the third gap involves reflecting on past experiences, where people measure their present circumstances against their best previous experiences, which can result in discontent. These assessments collectively shape how satisfied a person feels in their current life situation.