In the summer of 1950, Enrico Fermi, the Italian-American physicist and atomic-pile builder, went to lunch at Los Alamos National Laboratory and joined some colleagues there, and asked them a question: "Where is everybody?"
在1950年的夏天, Enrico Fermi, 美籍意大利物理学家 和原子堆创造者 在Los Alamos国家实验室和一些同事们共进午餐, 问他们一些问题: "大家都在哪里?"