When stocks are attractive, you buy them. Sure, they can go lower. I've bought stocks at $12 that went to $2, but then they later went to $30. You just don't know when you can catch the bottom.
量子傅里叶变换是Shor算法中指数级加速的关键。
I've always believed that if you put in the work, the results will come.
行为由驱力和习惯强度的相互作用决定。
我们必须考虑每一项技术进步对环境的影响。