Perceptense
Chapter I

Numbers & Scale

Weight, size, time, money and the odds. The quantities everything else gets measured in.

8 modules
  1. 01 Weight & Mass How much things weigh, from paperclips to cars Numbers & Scale
  2. 05 Money & Economy Millions, billions, GDP, inflation, debt, and financial scale Numbers & Scale
  3. 07 Time & Scale Seconds to centuries, building time intuition Numbers & Scale
  4. 09 Size & Scale Atoms to galaxies, orders of magnitude Numbers & Scale
  5. 12 Probability & Risk Odds, chance, and how to think about risk Numbers & Scale
  6. 13 Percentages & Ratios Mental math tricks for everyday numbers Numbers & Scale
  7. 29 World Population & Demographics How many of us there are, how fast we are growing, and what the numbers mean Numbers & Scale
  8. 38 Crypto Blockchain, Bitcoin, DeFi, and the problems of decentralised finance Numbers & Scale