It took 250,000 yrs for world pop to reach 1Billion. 100 yrs to 2B. 32yrs to 3B. 28yrs to 5B. 12 years to 6B. Another 12yrs to 7B.
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It took 250,000 yrs for world pop to reach 1Billion. 100 yrs to 2B. 32yrs to 3B. 28yrs to 5B. 12 years to 6B. Another 12yrs to 7B.
