To do things, you need to know how, and this knowhow is mostly unconscious. After all, most of us know how to ride a bicycle, but we are not really aware of what our brain does to achieve that feat, or how it develops that ability through practice.
我将这些结果解释为隐性知识（tacit knowledge）或诀窍效应。要制造东西，你需要知道怎么制造，而这一诀窍往往是无意识的。毕竟，我们大部分人知道怎么骑自行车，但我们并不真正知道我们的大脑要做些什么以实现这一目的，或者我们的大脑如何通过实践发展这一能力。