translation.en: Zero ongoing communication costs. Highly scalable; you can just keep adding them, and as in Katrina, you can keep subtracting them -- as long as there's some, we can still communicate.
translation.zh: 交互通讯的成本为零；极高的灵活度； 你甚至于可以在飓风Katrina里加入到多跳网络中来。 你可以随意出入其中；只要里面仍然有一些设备，我们就可以保持通讯顺畅。