When we answer questions, we have the conclusion in mind. Rather than give it straight away, we lead the questioner. We see the destination, but expect a lot of trust from the listener. We expect a lot of clarity from ourselves. The listener will be hearing based on what they already know. If they don't recognise something or it clashes with what they believe, our answer may arrive at its conclusion without them. A good exercise is to hone answers to 100 words (enough to fit into an elevator ride). The more thought given, the shorter the answer can be.