Pessimists would immediately point out that Europe has struggled to come together even on far less complex and more controllable issues, such as the protracted economic and financial crisis in Greece. Yet history also suggests that shocks of the scale and scope of the current refugee crisis have the potential to spur remarkable policy responses.
悲观派马上会说，欧洲在复杂程度更低、可控性更高的问题上都难以形成一致，如持续的希腊经济和金融危机问题。但历史也表明，当前难民危机的规模与范围有可能刺激重大政策应对措施。