The spoken and digital word are very different methods of communicating. When you ask someone a question in person you can immediately clarify your question with the person you are asking to help you.
When you ask a digital question you are speaking from your mind and looking at a blank space. You walk away from the blank space and hope for the best. The person that can help you may not understand your question and may not respond. Or, that person may ask for some clarification from yo