"100,000,000 to 500,000,000 is supposed to be about right for...

  1. 3,191 Posts.
    "100,000,000 to 500,000,000 is supposed to be about right for our species to live in harmony with what's remains of life on this planet."

    sierra I'm interested to know how you have come up with such a range. Also, roughly what's the time frame to get to that level?
 
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