John: I'd like to know more about the Luhmann note taking system.
Robert: Are you a scientist?
John: Sure ...
Robert: I doesn't know much about the Luhmann system.
John: Come one, there was a card box, right?
Robert: Many of them.
John: And i have to put the index cards into the boxes?
Robert: Maybe.
John: Is this some sort of quiz?
Robert: Luhmann is death. He doesn't even used a computer, and his books have a low quality. So why are you trying to research the topic in detail?
John: I doesn't understand the advantage of using index cards over normal sheet of paper.
Robert: Can you be more specific?
John: A normal sheet of paper has the size of US-Letter or A4 which is 210mmx297mm. In contrast, an A7 index card has only 74mm by 105mm.
Robert: Luhmann has never used the A7 format but he was preferring A6.
John: The principle is the same. A single a4 paper can be divided into 4 individual sheets in A6. Why should somebody use the smaller size?
Robert: I understand what you mean. Smaller sheets are producing a mess by default.
John: Exactly, Normal A4 paper can be stapled together into a book. The book is a single writing area with unlimited amount of space.
Robert: I will tell you something. The difference between A6 and Aa4 is low. It depends on the content somebody has written.
John: You mean, we can ignore index cards at all?
Robert: Sure, modern database systems and word processing software have replaced former index card. The real debate is around analog vs. digital.
John: Perhaps you're right.
Robert: Yes, I am. Best luck for you. Bye.