Take the global economy in the year 2000 and grow it at the usual rate of 3% a year. Even at this modest-sounding increment, economic output will double every twenty-three years, which means quadrupling before the middle of the century, within half a human lifespan. And if we continue growing at that same rate, by the end of the century the economy will be twenty times bigger – twenty times more than we were already doing in the roaring 2000s. Another hundred years later and it’s 370 times bigger. Another hundred years after that and it’s 7,000 times bigger, and so on. It mocks all the powers
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