translation.en: Because if you look at a brain with your naked eye, you don't really see how complex it is, but when you use a microscope, finally the hidden complexity is revealed.
translation.zh: 如果你只用肉眼来看一个大脑 你看不到它有多复杂 但是，在显微镜之下 那隐藏的复杂性就最终显现出来了