translation.en: And the reason it remains a favorite project is that we were asked to do a teleconferencing system where you had the following situation: you had five people at five different sites -- they were known people -- and you had to have these people in teleconference, such that each one was utterly convinced that the other four were physically present.
translation.zh: 并且保留最喜欢的项目的原因是 我们被要求做一个电话会议系统时 我们有如下的情况： 你有五个人在五个不同的地点。他们互相认识对方。 你不得不在电话会议里邀请这五个人 每个人都需要完全信服 其它的四个人必须亲自在场。