AI-generated summary
The document discusses a method for creating fill-in-the-blank questions in Obsidian to enhance memory retention. It explains the principle of using community plugins to alter the display of content, such as masking or blurring. The key plugin mentioned is "Masking Type," which allows users to set certain text styles (bold, italic, highlighted) as fill-in-the-blank options. The fill-in effects are visible only in reading mode, while editing mode is used for creating questions. Users can toggle the visibility of the content by clicking on the masked areas.