哪吒机器人提醒：
提醒：Tim Harford
【标题】Malthus’s ghost and baby number 7bn
【摘要】
“in five days, world population is projected to reach 7 billion.” – un population fund, october 26there will be 7bn of us come halloween? you’re kidding.someone at the unpfa has a sense of humour, it seems. this is a terrifying prospect to some and cheery for others, while most of us find it irrelevant. halloween seems appropriate.this is a statistical projection, and statistical projections don’t have a sense of humour.but they do have margins of error. the unpfa doesn’t even know whether... (10-31 04:26)
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