My read on history is that the great economic revolutions occur when two phenomena come together. When we change energy regimes, it makes possible much more complex economic relations. When energy revolutions occur, however, they require communication revolutions that are agile enough to manage them. If you look at the 19th century, print technology became very cheap when we introduced steam power into printing. That decreased the cost and increased the speed, efficiency and availability of print material. At the same time we established public schools in Europe and America. We created a print literate workforce with the communication skills to organize a First Industrial Revolution driven by coal and steam power.