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UI Data Is Never Truly Fresh

takeaway 1 connections

When stakeholders insist read models must be instantaneously consistent, remind them that displayed data is already stale the moment it's rendered. Moving the freshness window by a few seconds for projection lag is fine for virtually all UIs. Business-critical decisions, however, should be made against up-to-date projections computed at decision time (often seeded from snapshots).

type
insight
takeaway UI Data Is Never Truly Fresh
from_talk
Pavel's answer to the 'how often should we project' Q&A.

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