translation.en: And if you think about using this in testing, in just introducing control elements of randomness in all forms of testing and training, you can transform the levels of people's engagement by tapping into this very powerful evolutionary mechanism.
translation.zh: 如果你想把它 运用到测验中 引入控制随机变量 到任何形式的检测和训练里 你能够改变人们的投入程度 通过引进这种非常有力的 进化机制