Bulls don't read. Bears read financial history. As markets fall to bits, the bears dust off the Dutch tulip mania of 1637, the Banque Royale of 1719-20, the railway speculation of the 1840s, the great crash of 1929.

Cause and effect, the riddle of all history, is a particular devil in financial history; and never more so than today, where entire classes of security are collapsing not on public exchanges and stock-tickers but because there are no markets to establish prices this side of nothing.

Saudi Arabia operates according to the belief that God made young men and women so utterly and completely without self-control that they must be physically segregated every moment of the day and night.

When Gordon the Brown, in London in 1997, commissioned a great inquisition or survey of his new realm, the result was the so-called national asset register (NAR), which was immediately dubbed by the boomers of the UK Treasury "the modern Domesday Book".

The rise to prominence of the Saudi novel in Arabic is the great man-bites-dog of recent world literature. Saudi Arabia is a country without a free press, where European styles and forms are distrusted and where the female half of the population became literate only in this generation.

Viewed from a distance, or through the eye of the All-Knowing CEO of the Universe, the crash of 2008 followed the usual pattern. A long-lived boom driven by cheap credit, going back as far as 1982 (though subject to interruptions in the mid-1980s and 1990s, and in 2001), came to grief because of a rise in the cost of borrowing money.

There are about 15 million Muslims in the EU. They face ignorance, insult and even persecution. They cannot be wished away. To impose Enlightenment freedoms is self-defeating. Anyway, the Muslims have their own enlightenment.