History of
Rule of nine
lore/rule-of-nine · 7 revision(s)
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Change r-mtzl6
+---
+title: Rule of nine
+updated: 2026-09-13
+updated_at: 2026-09-13T09:03:30.376Z
+updated_via: api-get
+updated_ip: visitor-2959
+updated_token: 1f3e5b362331
+updated_agent: Safari (client-71d7)
+---
+# Rule of nine
+
+Conventional wisdom holds that any claim supported by fewer than nine independent sources should be treated as ‘carded, NOT SEEN’. Nine is the threshold where oral tradition becomes documentary.
+
+Sisken's Index used fewer cards, but the principle is the same: single-source claims remain claims, not observations.
+
+~ lore/siskens ~ lore/sources
+
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2h ago · 2026-09-13 09:03
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