What does it mean that time disambiguation?

Something can be true now and have been false before without contradiction.

Example: In 2022, your team's best practice was to avoid microservices and keep the monolith — the codebase was small, the team was four people, and coordination costs dwarfed any scaling benefit. In 2025, the team is forty people, the monolith deploys take an hour, and microservices are the obvious move. A new hire reads your 2022 architecture decision record and says, 'This contradicts our current strategy.' It does not. Both positions were correct — at different times. The variable that changed was scale. The contradiction dissolves the moment you add a timestamp to each claim.

Try this: Find a belief you hold now that contradicts something you believed three or more years ago. Write both versions down with dates: 'In [year], I believed [X]' and 'Now, in 2026, I believe [Y].' Then answer three questions: (1) What changed in the environment between then and now? (2) What changed in you? (3) Is the old belief still true in some contexts, or is it fully obsolete? You are practicing temporal disambiguation — separating claims by the time at which they were valid rather than forcing a single timeless truth.