The AIIB is envisioned as a kind of throwback development bank, one that launches infrastructure projects with little red tape and no consideration of social or environmental factors. But, if the AIIB is to achieve its ambitious goals, which include a modern recreation of the ancient Silk Road trade route to Europe, China will have to overcome more than its neighbors’ reluctance; it will also have to contend with its citizens’ growing impatience with grandiose visions.