A journal converts memory into evidence.

| Concept | Explanation | |---|---| | Pre-decision record | Thesis, evidence, assumptions, sizing, and invalidation. | | Event log | Material news and evidence changes. | | Post-decision review | What happened and why. | | Process score | Whether rules were followed. | | Learning item | Specific improvement for future decisions. |
Key idea: A journal converts memory into evidence. Without a record, investors often rewrite their original reasoning.