—— 请按键盘 空白键 开始游戏 ——

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。
The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.
要养活世界,我们必须先了解它。