But only the Arabs can reverse their civilisational decline, and right now there is little hope of that happening. The extremists offer none. The mantra of the monarchs and the military men is “stability”. In a time of chaos, its appeal is understandable, but repression and stagnation are not the solution. They did not work before; indeed they were at the root of the problem. Even if the Arab awakening is over for the moment, the powerful forces that gave rise to it are still present. The social media which stirred up a revolution in attitudes cannot be uninvented. The men in their palaces and their Western backers need to understand that stability requires reform.

Is that a vain hope? Today the outlook is bloody. But ultimately fanatics devour themselves. Meanwhile, wherever possible, the moderate, secular Sunnis who comprise the majority of Arab Muslims need to make their voices heard. And when their moment comes, they need to cast their minds back to the values that once made the Arab world great. Education underpinned its primacy in medicine, mathematics, architecture and astronomy. Trade paid for its fabulous metropolises and their spices and silks. And, at its best, the Arab world was a cosmopolitan haven for Jews, Christians and Muslims of many sects, where tolerance fostered creativity and invention.

Pluralism, education, open markets: these were once Arab values and they could be so again. Today, as Sunnis and Shias tear out each others’ throats in Iraq and Syria and a former general settles onto his new throne in Egypt, they are tragically distant prospects. But for a people for whom so much has gone so wrong, such values still make up a vision of a better future.