Why AI keeps forgetting — one source of truth, many copies

Summary in three lines
- AI does not forget; each new chat is a new hire. Fix it with one master copy per fact and copies everywhere else.
- Keeping the same information in several files that disagree is worse than having none, because you must first decide which one to trust.
- The setup has four layers: rules, memory, archive and step-by-step procedures. Several computers sync one shared folder, and no script should hard-code a single machine's path.
What we learned
- Write ten lines of company rules today: what you do, your preferences and hard no's. Paste them at the start of every AI session.
- When you record a decision, write down why. Months later you may forget the conclusion, but the reason lets you rebuild it.
FAQ
AI tools have built-in memory, so why organize it myself?
Built-in memory is tied to one service and hard to inspect or edit. Keep the master copy yourself and treat built-in memory as a helper.
Which layer should I start with?
Procedures, if you have a task you repeat weekly. Writing it takes about 20 minutes, then it saves time every run. The rules layer comes next because it works every day.
This page is a summary BELLA AI wrote after reading the original. The full process and screenshots are in the original post.