Narrative vs Facts

Stick to facts.

Overview

The most credible postmortems separate facts (timestamps, actions, observations) from narrative (how the team experienced the incident). Both belong in the document; they belong in different sections. Mixing them produces postmortems where speculation and emotion bleed into the timeline; auditing the actual decisions becomes impossible.

• Stick to facts in the timeline. Per-event the timestamp, action, and observation. Evidence-linked, not memory-based.
• Narrative as a separate section. The team’s experience of the incident, kept distinct from the timeline.
• Avoid speculation in the facts. What was known when, not what we now think was happening.
• Systems language plus evidence per event. Blame-free systems framing; per-event a Slack or log link supports auditability.

The approach

Three habits separate fact-driven postmortems from narrative-driven ones: a dedicated facts section, a separate narrative section, and links to evidence for every claim in the timeline.

• Facts section. Per-event timestamp and action. Speculation kept out; what was known when documented explicitly.
• Narrative section. Team experience captured separately. Emotional truth has a place; it is not the timeline.
• Evidence-linked entries. Per-event a Slack or log link. Future readers can verify the claim.
• Speculation discipline plus documented template. Per-event what was known when, not what we now know; per-team the postmortem template lives in the runbook.

Why this compounds

Each fact-driven postmortem deposits a credible record. Future investigations cite it confidently; recurring incident classes get tracked across postmortems because the data is structured the same way every time.

• Learning improves. Fact-based postmortems produce real institutional knowledge instead of feel-good narratives.
• Culture preserved. Systems language replaces blame language. Trust survives even hard incidents.
• Follow-through improves. Right facts produce right actions. Action items target the actual contributing factors.
• Year-one investment, year-two habit. First fact-driven postmortem is heavy lift. By the fifth, the structure is muscle memory.