# Knowledge rollover through Periodic Reviews Linking knowledge to time is one of the things I find most valuable in the context of [[Personal Knowledge Management (PKM)]]. The core of the approach is combining [[Interstitial Journaling]], which helps capture information as part of your journal (in daily notes), [[Periodic reviews]] and a process I call "Knowledge Ingestion" to extract/link/tag/organize and rollover the information. The captured information may include: progress, achievements, challenges, things you're grateful for, ideas, thoughts, things you've learned, ... When information is captured in daily notes via [[Interstitial Journaling]], the knowledge is "connected to time" (i.e., if you go back to that day's notes, you will find the information back). During weekly reviews, the knowledge ingestion process takes the raw information captured in daily notes and extracts it into separate notes that are then connected, linked, tagged, organized, and also added to a note for that week (e.g., 2025-W31). At that point, those notes have become first-class citizens of your [[Knowledge Graph (KG)]] and are connected to two time horizons (a specific day and a specific week). The nice thing there is that the week note then contains all the key information of that specific week. Then, during subsequent [[Periodic reviews]] (e.g., monthly, quarterly, yearly...), the information rolls over from period to period. Through this process, the information that was captured on a daily basis rolls over to weekly notes, then to monthly notes, then to yearly notes, ... This connects the same pieces of information to different time frames, which is highly valuable to answer questions such as "What did I do last X?". After each period, the information compounds and it becomes possible to notice trends, recurring issues/patterns, ... ## Related - [[Interstitial Journaling]] - [[Knowledge Graph (KG)]] - [[Periodic reviews]] - [[Personal Knowledge Management (PKM)]]