"The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter."
For systems, the analogue of a face-lift is to add to the control graph an edge that creates a cycle, not just an additional node.
Computer science is no more about computers than astronomy is about telescopes.
如果我不演戏,我不知道我会做什么。我想我会发疯的。