Allen tells a story of accidental evolution, Arik reassures 1930s New York, Allen accidentally learns about pearling, and Arik explains how the sun heats things.

  • The July 1930 issue of The New Yorker
  • The Chrysler Building
  • Bedrock and Midtown
  • Vavilovian mimicry
  • Why it’s colder on a mountain
  • Prolate spheroids
  • Pearling, not the wikipedia page about body modification, but rather a very nice page from Bob’s Red Mill