Myth: One single source of truth fixes your data chaos

Myth: One single source of truth fixes your data chaos

The rallying cry of every stack consolidation: build the one source of truth. The correction: you can't have one truth across systems with different update cadences and definitions — you need an agreed source of truth per question, with clear lineage.

— A thread on "source of truth per domain" instead of one mythical table.
— A piece on metric definitions and the semantic layer as the real fix.
— A teardown of why two dashboards disagree even with shared data.
— A template for documenting which system owns which metric.

Skip if your team already runs a semantic layer. Essential if "why don't these numbers match" eats a meeting a week.

That's the stack for this week. Forward to a teammate.