"Natural science is hoping thereby to make the idea of laws of nature compatible with the idea of events, of novelty, and of creativity. In a sense, it could be argued that instability plays a role for physical phenomena analogous to that of Darwin's natural selection in biology. Natural selection is a necessary but not sufficient condition for evolution. Some spicies have appeared only recently; others have persisted for hundreds of millions of years. Similarly, the existence of probabilities and the breaking of time symmetry is a necessary condition of evolution."
闷头向前冲，再也回不去。想到了平行世界，一点点的不同就会永远不同下去。