translation.en: A second big idea is that this is the era of big data and machine learning, and machine learning promises to revolutionize our understanding of everything from social networks to epidemiology.
translation.zh: 第二个大的观点是 现在是大数据和机器学习的时代， 机器学习预示了我们对事物 的理解将发生革命性的变化， 无论是对社交网络还是流行病学。