Among the few certainties in crafting economic policy is the need to adapt to external change. Our challenge is like that of Industrial Revolution-era moths, which adapted to their new soot-laden environment by becoming darker (and thus better able to hide from predators).
在制定经济政策过程中为数不多的确定性选项中就包括有适应外部变化的需求。我们的挑战就像工业大革命时的飞蛾——它们通过变得更黑（从而能更好地躲避天敌）来适应新的烟尘环境。而在全球化经济下，各国的政策制定者也不能只围着灯光打转。