But let’s skip past the opening chapters to the core of the argument. Mokyr’s claim is that the West was uniquely placed to enter on an extended period of scientific, technological and industrial progress because of three factors: a respect for useful knowledge (Bacon being the “cultural entrepreneur” who was most important in inculcating this outlook); the division of Western Europe into competing states, each of which had to try to improve on its competitors and no one of which was capable of imposing a stultifying intellectual conformity; and lastly, the emergence in the late 17th century of a transnational “republic of letters” through which intellectuals exchanged information and co-operated to advance useful knowledge. These three factors made the industrial revolution possible. They are the cause of the great divergence.
But let’s skip past the opening chapters to the core of the argument. Mokyr’s claim is that the West was uniquely placed to enter on an extended period of scientific, technological and industrial progress because of three factors: a respect for useful knowledge (Bacon being the “cultural entrepreneur” who was most important in inculcating this outlook); the division of Western Europe into competing states, each of which had to try to improve on its competitors and no one of which was capable of imposing a stultifying intellectual conformity; and lastly, the emergence in the late 17th century of a transnational “republic of letters” through which intellectuals exchanged information and co-operated to advance useful knowledge. These three factors made the industrial revolution possible. They are the cause of the great divergence.
Thus Mokyr’s three conditions are not sufficient. You also need a culture of discovery and of facticity to make sustained progress. You need, in addition, an understanding of the power of experimentation. You need a step change in the exchange of information which printing made possible. And you need luck or contingency: the conceptual foundations of the steam engine were laid by intellectuals keen to prove that Aristotle was wrong when he denied the possibility of a vacuum; without Aristotle no Boyle’s law. It is the absence of a comparable challenge that held back progress in medical therapeutics.