translation.en: And I think that attachment, the third brain system, evolved to enable you to tolerate this human being at least long enough to raise a child together as a team. So with that preamble, I want to go into discussing the two most profound social trends.
translation.zh: 而第三种大脑系统：依赖 则发展成使你能够对他/她很忍耐。 这种宽容至少可以帮你撑过抚养小孩的这段时间。 开场白之后，我要讨论两个最显著的社会趋势。