Orders of Magnitude
summary
Humans are lousy at extreme scales: innate number sense up to four but counting and naming bigger quantities is learned and misleading. Optical and electronic tools extend perception from hair (~e‑4 m) to stars (~e16 m) and from blinks (~e‑4 h) to lifetimes (~e5 h); processors reach gate lengths e‑9 m and atoms ~e‑10 m. Reliability math bites: nine nines of availability allows ~31.5 ms downtime so metrics logging, mutexes, transactions and queues must handle surprising edge cases like long or Unicode names and odd email formats.
AI-written summary · about
chapters (8)
- 0:00Intro
- 1:09Introduction
- 3:38Number Sense
- 5:34Counting
- 7:33Number Names
- 9:00Number Systems
- 19:52Risk
- 26:21Education and astrophysics
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