两年前,当我听到2011年诺贝尔化学奖的消息,晚上浮想联翩,竟至失眠。脑子里涌现出一大串看似关联,又非关联的故事:准晶体、王浩瓷砖、彭罗斯地板、图灵机、哥德尔定理、意识的硬难题……次日是周五,教课开会虽然很累,但还是迫不及待地漏夜写出。今天翻出草稿,整理一下细细讲来与大家分享。 Two years ago, when I heard the news of the 2011 Nobel Prize in chemistry, I imagined sleepless nights at night. There appeared a long list of seemingly connected but unrelated stories: quasicrystals, Wang Hao tiles, Penrose floors, Turing machines, Godel’s theorem, and hard questions of consciousness ... The next day was Friday and the class was meeting though Very tired, but still can not wait to miss the night to write. Turned out the draft today, put it down to sort it out to share with you.