Quote:
Originally Posted by Mathgod
Humanity has taken hundreds of thousands of years to reach a population of 1B, 100 years after that to reach 2B, 35 years after that to reach 3B, and has ballooned to 7.5B in the 60 years since then, was my point.
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It's weird to think that 6.5% of the human beings that ever existed on this planet are alive today. Using 50,000 BCE as the date of around when our ancestors would be biologically the same as us.