translation.en: But I want to start with the easiest question and the question you really should have all asked yourselves at some point in your life, because it's a fundamental question if we want to understand brain function.
translation.zh: 不过我今天要从这个最简单的问题开始 这个问题是大家应该在以前问过自己的 因为如果大家想了解大脑功能的话