Reversible first

When evidence is thin, prefer the next step that keeps options open.

The observation

For a decision that matters, write the conditions before writing the conclusion. Name the evidence, constraints, reversibility, and the date when the choice should be reviewed.

Reversible first is less a rule than a useful test: does the arrangement make the next encounter clearer?

In practice

When uncertainty is high, prefer a small step that produces information while keeping options open. A short premortem can reveal risks that enthusiasm has hidden.

A closing note

The record is not there to prove you were right. It is there to improve the next judgment and show when circumstances have changed.