translation.en: One of the problems that people bring up when I talk about this is, they say, you know, if people start keeping all this data private, all those methods that you've been developing to predict their traits are going to fail.
translation.zh: 当我谈论到这个话题时， 人们提到的其中一个问题，就是 如果当人们开始把这些数据进行保密， 那些你研发的用来预测 人们特性的手段都会作废。