Perhaps that's not the question you should ask. You might want to ask "what is your advice based on?" instead. If you do so, you evaluate the conclusion by focu

Perhaps that's not the question you should ask. You might want to ask "what is your advice based on?" instead. If you do so, you evaluate the conclusion by focusing on the quality of the argument, not features of the argumentator. You would agree, I suppose, that good medical advice could be given by non-doctors, and bad medical advice by doctors.