translation.en: So by the time I'm finished talking here, there'll be 864 more hours of video on Youtube than there were when I started, and two and a half million more photos on Facebook and Instagram than when I started.
translation.zh: 也就是说，我今天的演讲结束之后， YouTube上就多出了864小时的新视频， Facebook和Instagram上则多出了二百五十万张新照片。