❺ 根据卢曼笔记法研究者 /《How to Take Smart Notes》作者 Sönke Ahrens 的介绍，当永久笔记积累到相当规模（Critical Mass）之后，卡片盒的使用者将会获得超越常规信息管理系统的体验：与卡片盒中的思想体系做对话，如同发现了一位“被动思考”但拥有长期无限记忆容量的学术研究伙伴
❻ 专门介绍卢曼笔记法的书《How to Take Smart Notes》中还曾提到，卡片盒的可用性并不局限于作者本人。当卢曼去世后，他的同事借助卡片盒中的内容，在相关领域内继续以卢曼本人的名义发表了一些新的论文。
Introduction to the Working Logics of Luhmann Zettelkasten Note-taking System
◆ The Luhmann Zettelkasten Note Management System is a thinking-facilitating system.
◆ It takes its name from the German sociologist Nicholas Luhmann.
◆ Luhmann practiced and developed it throughout his personal academic and research career.
◆ It can be viewed from two perspectives: one from the perspective of a technical tool and the other from the perspective of an information processing workflow.
◆ From the perspective of technical tools, it serves as an information management medium outside the brain, primarily playing the functions of recording, storing, organizing and archiving. With the continuous development of information technology, it is no longer important to realize the way of physical card box today, and can be realized with powerful digital software tools.
◆ From the perspective of information processing workflow, its operation process is still important today, because it provides a bottom-up, gradual iterative information organization scheme, suitable for subject scenarios with high complexity and requiring creative thinking, specifically: the goal and measurements can't be pre-determined, and there are very many directions and details available for exploration, which need to be gradually clarified in the process of learning. For example, academic research, exploratory discovery, Scientific Theory or Explanatory model conceptualization, self-directed lifelong learning, etc.
The main information processing flow of Luhmann Zettelkasten note management is as follows:
❶ The user proposes a topic in her/his personal research area of interest and sets it as the entry note of the card box. For example: "How to programmatically simulate the self-organizing behavior of living organisms?"
❷ Organize the Literature Notes as you read the references: on the front side are the source addresses and access methods of the literature, and on the back side are the takeaways from the reading process. Each insight takes up one line, focuses on one point if possible, briefly explains what was learned from the literature. Do not just copy the original text, but try to indicate which part of the literature triggered the insight.
❸ Daily spontaneous ideas can be recorded as Fleeting Notes: these are similar to post-it notes or sticky notes, and are intended to be a quick collection of ideas that may contribute to the research objectives (they are not kept in Zettelkasten card boxes, but can be thought of as a sort of temporary "cache").
Finding a period of time for deeper thinking, and processing the above notes to produce Permanent Notes: these notes are stored in Zettelkasten card boxes for a long time, and can be reviewed at any time over a period of several years, hence the name Permanent Notes.
❹ Permanent Notes are directly or indirectly connected to entry notes through "directional linking relationships", and whenever a new permanent note is created, due consideration should be given to how this new note relates to the notes already in the Zettelkasten note boxes. Often, the idea of adding a new permanent note comes about precisely because when working with a Fleeting Note or a Literature Note the user confirms that the idea has an important connection to a note already in the boxes. This also suggests that the Zettelkasten method could not function independently of the user's brain, which acts as a "connector" between the boxes and the external collection of information, performing comparisons/analogies/associations.
❺ According to Sönke Ahrens, a researcher of Luhmann Zettelkasten method and author of "How to Take Smart Notes", when the Permanent Notes have accumulated to a critical mass, the user of the Zettelkasten boxes will have an experience that goes beyond a conventional information management system: a dialog with the system of ideas in the Zettelkasten boxes. It's like discovering a "passive thinking" academic research partner with unlimited long-term memory capacity!
❻ As mentioned in "How to Take Smart Notes", the book dedicated to introducing Luhmann Zettelkasten note-taking method, the usability of the Zettelkasten boxes is not restricted to the author himself. When Luhmann died, his colleagues drew on the contents of his Zettelkasten boxes to continue publishing new papers in related fields under Luhmann's own name.
This is a rough introduction to the basic elements and workings of Luhmann Zettelkasten note management system, for your reference.