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ISSUE 05 / MEMORY & DECISION-MAKING · 5 MIN READ

Your Personal AI Needs a Change Log

Memory can make advice fit your life. A review process helps it keep fitting when your life changes.

Don LongFounder, SummitMark · July 30, 2026
THE MOSTLY RIGHT LETTER
A desk scene: an open notebook with handwritten notes and a small flow diagram, coffee, a marble sphere, and stacked books.
An illustrative still life: the record is visible, human-reviewed, and still only part of the decision.

The useful personal AI is not the one that remembers everything. It is the one that can show its work, notice a conflict, and ask what is current.

Most AI advice fails in a quiet way. It sounds sensible for someone with a different schedule, a different risk tolerance, or a different history than yours. That is the problem Don Long is trying to solve with Cora, a personal AI built around plain-text notes and instructions. The notes record what he is building, what is true now, what he will not trade away, decisions and their reasoning, paused projects, and corrections to the system's misunderstandings. The idea is not to make a model magically wise. It is to give an existing model a record it can inspect, along with rules for how to use that record.

Memory is only half the problem

Source note: This issue is based on Don Long's user-supplied article, “How to Build a Personal AI for Decisions That Actually Fit Your Life.” Cora's setup and project comparison are attributed to Long and were not independently reproduced. Current feature statements were checked against official documentation on September 13, 2026: Anthropic's guide to desktop and web connectors, Google's Gemini personalization guidance, and OpenAI's Memory FAQ. These product descriptions can change; they do not establish that any system retrieves a personal folder completely or improves decision quality.

ABOUT THE AUTHOR

Don Long

Founder of SummitMark. Helping people and organizations become capable with AI.

THE MOSTLY RIGHT LETTER

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