“There’s nothing I revile quite as much as a dilettante,” Seinfeld told GQ , “ I don’t like doing something to a mediocre level.” Escaping mediocrity requires focus. “You have to dedicate yourself to these great things,” he added. “And I don’t believe in being good at a lot of things—or even more than one.”

Maintaining focus becomes easier because ideas become less interesting. “Experts literally experience a different world within their specialism,” Tom Morgan pointed out . Experts perceive more layers and details, they see patterns and nuances invisible to others. Their experience of the same domain is richer, more interesting, and filled with an... See more