Single source of truth: one authoritative answer, not four
A single source of truth is the one authoritative record for a given fact — rare in practice, where claims live scattered across tools and threads.
When the same fact lives in a doc, a board, a thread, and someone's memory, you don't have one source of truth — you have four sources of argument. A single source of truth ends the argument.
Why is a single source of truth so rare?
Because facts get recorded wherever it's convenient in the moment — chat, a spreadsheet, a slide, a verbal update. Each copy then drifts independently, and reconciling them becomes a job in itself.
What does a real single source of truth require?
Not just one place to write things down, but a way to keep that place reconciled with reality. A source of truth that nobody checks against the systems is just one more place that can be wrong.
Frequently asked
Is a wiki a single source of truth?
Only if it's kept current and reconciled with what's actually happening. A stale wiki is a single source of confidently-wrong answers.
Stop being the reality check.
A small founding cohort — India + GCC. A direct line to the founder.