translation.en: I mean that we have mathematically consistent theories that were actually introduced to explain a completely different phenomenon, OK, things that I haven't even talked about, that each predict the existence of a very weakly interacting, new particle.
translation.zh: 我的意思是说我们有数学上统一的理论 被引入 去解释一个完全不同的现象 一些我还没有讨论到的现象， 每个预言了 新的弱作用粒子。。