translation.en: But we don't want just any math problem, we want the hardest ones that we can possibly find, and we want the one that if you solve it, there's a little bit of a wow factor.
translation.zh: 但我们要的不是只有数学问题， 我们要的是能找到最难的问题， 并找出那个可以解决问题的关键因子， 那才是我们最想要的。