Need a reason to drink this weekend?

Mark Steyn is at it again.

What country today has half of its population under the age of 15? Italy has 14 per cent, the UK 18 per cent, Australia 20 per cent - and Saudi Arabia has 39 per cent, Pakistan 40 per cent and Yemen 47 per cent. Little Yemen, like little Britain 200 years ago, will send its surplus youth around the world - one way or another.
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Seventeen European nations are now at what demographers call "lowest-low" fertility - 1.3 births per woman, the point at which you're so far down the death spiral you can't pull out.

In theory, those countries will find their population halving every 40 years or so. In practice, it will be quicker than that, as the savvier youngsters figure there's no point sticking around a country that's turned into one big undertaker's waiting room: not every pimply burger flipper is going to want to work himself into the ground to pay for new shuffleboard courts at the old folks' home.
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Europe is bicultural: a fading elderly population yielding to a young surging Islam. ...
The remorseless transformation of Eutopia into Eurabia is already prompting the Dutch to abandon their country in record numbers, for Canada and New Zealand.
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In the '70s and '80, Muslims had children - those self-detonating Islamists in London and Gaza and Bali are a literal baby boom - while westerners took all those silly books about overpopulation seriously. A people that won't multiply can't go forth or go anywhere. Those who do will shape the world we live in.