1. Convergence Rather Than a Single Cause
The central intellectual move in Wyman's account is to refuse any single-factor explanation for why Europe surged outward around 1500. Gunpowder alone had existed in China and the Islamic world without producing the same outcome. Print alone could not pay for a fleet. Credit alone could not breach a city wall. What made this moment genuinely transformative was the simultaneous arrival and mutual reinforcement of several distinct systems, each of which lowered costs and raised the reach of the others. This interlocking quality is what Wyman finds so historically unusual and so worth examining closely.
Why it matters: Convergence arguments are harder to grasp than single-cause stories, but they are almost always closer to how history actually works. Recognising that transformations come from overlapping systems, not lone geniuses or silver-bullet technologies, reshapes how we think about change in our own time.