The Zheng He Fleet and the Portuguese Caravel

At 1430, the Ming dynasty was completing the sixth of seven naval expeditions into the Indian Ocean. The fleet was enormous — more than 300 vessels and 28,000 men on the first voyage. It had reached East Africa. It had intervened militarily in Sri Lanka and Sumatra. It had brought dozens of foreign rulers into the Ming tributary system. Portugal, at the same moment, had spent twelve years failing to pass a single headland — Cape Bojador, on the West African coast. Fifteen expeditions had tried and turned back. Their ships were caravels of 50 to 80 tons with crews of a few dozen. By any snapshot measure — tonnage, range, crew size, weaponry, number of ports reached — China was the dominant maritime power. By 1498, Vasco da Gama had reached India, and the Portuguese were building a maritime empire from Brazil to Macau. Zheng He's ships were ash and his records destroyed. This is not a story of reversal. It is a story of measuring the wrong variable. The model predicts that the divergence should be larger here than with Song China — the Portuguese were not just institutionally distinct but operating in a selection environment that forced institutional generation, while the Ming were borrowing capability from a network they did not control. The surface appearance of Chinese superiority at 1430 is an artifact of counting operational capability rather than institutional innovation rate.