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I tried to get rid of people under 21 by reducing the population from 320M to 300M, but I guess I should look and see what the actual numbers are.

• ericd 10y ago
  "People under 21 years of age made up over a quarter of the U.S. population (27.1%)" (https://en.wikipedia.org/wiki/Demography_of_the_United_States https://en.wikipedia.org/wiki/Demography_of_the_United_State...) So the population over 21 is about 230M.
  • mac01021 10y ago
    Hmm... That's a higher fraction than I expected. It could be much lower 20 years from now.
    • ericd 10y ago
      Yeah, very well could be if the birth rate drops or life expectancy keeps rising.