Atomic notes

An atomic note contains a single concept. Its size is defined not by length, but by focus: atomic notes are usually short because they capture only one idea at a time. Atomicity refers strictly to the number of concepts in a note, rather than its word count or page length. This concept is popularized in Sönke Ahrens’ book How to Take Smart Notes, which details a modern implementation of Niklas Luhmann’s Zettelkasten Method. For broader notes that combine multiple interconnected concepts, see Molecular notes.