In Barry Schwartz's book, "The Paradox of Choice: Why More Is Less," he explores the concept of decision-making and the emotions tied to it, particularly regret. He highlights that whenever individuals make a choice that leads to an unsatisfactory outcome, they often experience feelings of regret, especially when they realize there was a better alternative available. This insight reveals that regret can stem from our awareness of other options that might have been more beneficial.

The author emphasizes that the possibility of regret is a significant psychological factor that affects our choices. Schwartz discusses how having too many choices can lead to increased anxiety and dissatisfaction, as people struggle to weigh options and fear making the wrong decision. Ultimately, he suggests that embracing a more limited range of choices could lead to greater contentment and reduced regret in our lives.