Overview
Narrative
Annotated
Navigation & Mapping System
search · directions · live traffic · turn-by-turn — 50M DAU · 1M concurrent navigators · 200K probes/s
arrows
0/22
cards
16
letters
A–N
happy-path
side-effect
failure-comp
new-infra
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BOTE — canonical numbers
(every N- chip in the rail links here)
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Failure playbook (A–N)
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What breaks first · interview framing