Because, in some sense, it's the ideal kind of technology to think about. Theoretically, it makes it as easy to form friendships halfway around the world as opposed to right next door.
因为，从某种角度说，它是一种需要研究的理想科技 理论上说，它使得 跨地球两端交朋友 变得仿佛就住在隔壁一样。