Obsessed Enthusiasts, or 'NERDS' as they are often referred to, are people who are passionate and knowledgeable about a particular subject. They are usually highly intelligent and often have an intense interest in a certain area of study or hobby. They may spend a lot of time researching and learning about their chosen topic, and may even become experts in the field. They often have a strong sense of community with other like-minded individuals, and may even form clubs or organizations dedicated to their shared interests.