What is the difference between a Turing machine and the modern computer? It's the same as that between Hillary's ascent of Everest and the establishment of a Hilton hotel on its peak.
图灵机和现代计算机之间有什么区别？这与希拉里（Hillary）登上珠穆朗玛峰（Everest）和在高峰期建立希尔顿酒店之间的过程相同。
分布式系统是指一个系统中，即使是你不知道存在的计算机发生故障，也可能导致你自己的计算机无法使用。
"Theatre is the art of making absence present."