writing is like teaching

Just because someone knows how to do something or they’re knowledgeable about a topic doesn’t mean they can teach it. There’s a lot of explanation that seems obvious to someone who already knows how to do something that is necessary when teaching others how to do it. Also, you have to work through the material gradually and systematically, not making any quick moves. Sometimes we think that those ‘quick moves’ display our expertise, but they don’t — they just confuse those we are trying to teach. A similar principle applies to writing. To really get your message across, you have to include a lot of ‘signposting’ and explanation that you, the writer, don’t need but which helps the reader to understand what you’re trying to convey.