translation.en: And by this, I mean looking at what millions upon millions of people have done and carefully calibrating the rate, the nature, the type, the intensity of rewards in games to keep them engaged over staggering amounts of time and effort.
translation.zh: 说到这，我的意思是 看着亿万人做了什么 然后仔细校准在游戏中的 频率，性质，类型和奖励力度 以保持他们参与 以这惊人数量的时间和努力