And 50 years ago, if you'd been at a meeting like this and were trying to understand the media, there was one prophet and only but one you wanted to hear from, Professor Marshall McLuhan.
如果在50年前，你也遇到这样的情况 你也要尝试去理解媒体 只有一个先知，也是唯一一个，可能你也听过 马肖·麦克卢汉教授