China needs to triple its shipbuilding industry. For domestic market, it needs to make all its semiconductors, and aircraft engines. For export markets, it needs to create Chinese luxury brands in cosmetics and fashion.If that happens then that would mean even today China at market exchange rates would be 50% larger than America. If 1 USD = 3.25 RMB then China would probably be close to 4x the size of the US in 20-25 years assuming the growth differential stays the same till then.