No, writing the answer down takes much longer than just vocally expressing it.<p>1. Few people type as fast as they talk.<p>2. When talking, you already have all the context of the problem of discussion. This usually doesn&#x27;t need to be explicitly communicated in detail, both people are currently close enough to the issue to have most of the background. In a wiki you need to establish enough context that the page is useful to someone who comes to it with no other help. There is no point in having a wiki if you still need to talk to one of the guys who wrote it to understand it.<p>3. With a wiki (or any other secondary doc system) you need to organize the information and make it findable. This is a non-trivial effort as the knowledge base grows.<p>Personally, I&#x27;m a big fan of documentation in the code paired with a wiki or other secondary system for longer or higher-level documentation. But it is definitely more work.