"on a rather restricted definition of our species (allowing 250k years), population and economic growth has occupied a mere 4%

"on a rather restricted definition of our species (allowing 250k years), population and economic growth has occupied a mere 4% of its history; the really spectacular growth has occurred in the last 0.2% of that history.” David Christian 1991. @OurWorldInData https://t.co/TooaMhwvyK

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