"The study of computational complexity teaches us that some problems are inherently difficult, no matter how clever our algorithms are."
计算复杂性的研究告诉我们,有些问题本质上是困难的,无论我们的算法多么聪明。
But this long run is a misleading guide to current affairs. In the long run we are all dead.
The inflationary universe model suggests that the universe expanded exponentially in the first fraction of a second after the Big Bang.
一本书应该是一种体验,而不仅仅是你阅读的东西。
The best policies are those that align economic incentives with ecological health.