A little while back, Tom Johnson posted an article entitled Seeing things from the perspective of a learner in which he says, “The balance between knowing and not knowing is the tension that undergirds the whole profession of technical writing.”.
I think that is absolutely correct. The point, after all, is to assist the reader on their journey from ignorance to knowledge. I say assist, because this is not a journey that can be accomplished simply be reading. The reader has work to do to integrate their knowledge. They need to get their hands dirty. But a sympathy with the troubles and perils of that path is at very least, highly useful to the writer.