This is saying one could have an informed and correct opinion on any matter unless they are directly involved in that particular field. Oh, the movie sucked? A

This is saying one could have an informed and correct opinion on any matter unless they are directly involved in that particular field. Oh, the movie sucked? Are you a professional movie critic? Have you ever directed a movie? Oh, incarceration rates are unfair? Are you a lawyer? Have you committed a crime? No? How could you possibly know. Bailing out a bank is unethical? Are you working in the financial industry? No, how could you know what is fair.