translation.en: Imagine if you had access to data that allowed you to rank on a scale of overall happiness which people in your life made you the happiest, or what activities brought you joy.
translation.zh: 想象一下你可以看到一些数据， 这些数据让你能对一大堆，使你快乐的事情进行排序， 找出最能使你快乐的人， 或者最能使你快乐的活动。