Something is atomic when it forms a complete whole, or is self-contained. In other words, it is said to have the property of atomicity. - In the context of notes, it means that the note contains all information necessary for a reader to understand the concept presented in the note.[^1] - In the context of transactions, it means that the transaction exhibits the property of all-or-nothing. Either the entire transaction happens, or it doesn't. [^1]: Matuschak, A. Evergreen notes should be atomic. https://notes.andymatuschak.org/z4Rrmh17vMBbauEGnFPTZSK3UmdsGExLRfZz1