Journaling can help us to clarify next actions
Journaling about a topic can help us to clarify next actions about it. This habit is one way of using writing for thinking.
The “River of thoughts” concept means that you are writing down everything that comes to your mind and then later you organize it. The goal is to get down every idea, and then see what happens.
Hopefully at the end, you’ll end up with at least one next action that you can store in your GTD system.