A fleeting note is any idea important enough to capture in the moment
Fleeting notes, along with reference notes, are the entryway for ideas into your Zettelkasten. A fleeting note is any idea important enough to capture in the moment. This can be anything: “A reference note is for capturing ideas from a resource”, or items for grocery shopping. Tasks should always be discarded after their use, while ideas have the potential for becoming main notes in the future.
“Note-taking is writing, and writing is a path toward knowing. Taking fleeting notes is the first step in knowing what you think and believe. It’s a fundamental aspect of the larger system described in this book, as it marks the beginning of the externalization process where what you think you think contends with the ideas and beliefs that make up the world in which you live.” [1, p. 31]