translation.en: When you start looking at what actually flows on top of these networks, you get a very different picture. You start looking at how the global plane flights move, and you suddenly discover that the world isn't even close to flat.
translation.zh: 但假如你仔细观察在这些线路上 流动的是什么 你看到的将会是很不一样的图景 仔细观察国际航班的 踪迹 你会发现这个世界甚至远远讲不上是平的呢