Well, some people here might need to expand their horizon, especially with nowadays advancement in communication and technology. Here are some illustration
Development and Poverty Professor: While living in or experiencing poverty first-hand can provide valuable insights, it's not a prerequisite for becoming an expert in development and poverty. Professors in this field often study through research, analysis, and collaboration with communities affected by poverty. Their expertise comes from understanding economic, social, and political dynamics rather than personal experience alone.
Language Professors: Mastery of a language doesn't always require living in a country where it's spoken. Language professors often achieve fluency through dedicated study, immersion programs, and teaching experience. Their expertise lies in linguistic theory, pedagogy, and extensive practice, rather than geographic proximity.
Albert Einstein and Relativity Theory: Einstein didn't physically travel the universe to develop his theories. Instead, he relied on thought experiments, mathematical equations, and rigorous scientific inquiry. His groundbreaking insights into physics came from deep conceptual understanding and theoretical innovation, not from interstellar travel.
Criminal Lawyer: While firsthand experience with criminal behaviour can offer unique perspectives, it's not essential for becoming a skilled criminal lawyer. Lawyers specializing in criminal law develop expertise through legal education, courtroom experience, and studying precedents and statutes. Understanding the law, evidence, and trial procedures is crucial for effective representation, regardless of personal history.
I am not claiming I am an expert on Bali property market. But if they have interest anyone could easily learn it from the news, forum, authoritative sources. In each case, expertise comes from a combination of knowledge, skill, experience, and dedication to the field, rather than personal involvement in the subject matter.