4 ms·

Because its a useful ball park.

• asciilifeform 17y ago
  >a useful ball park Why do you think so? What actual evidence is there for it?
  • Beanblabber 17y ago
    I think the correct question is what actual evidence is there against it?
    • asciilifeform 17y ago
      The fact that Gladwell pulled the figure out of thin air?