The mind naturally understands concrete things better than abstract ones. Students struggle with abstract ideas unless they are tied to something familiar and specific.
本质在于如果过于抽象，一个实体的特征特别多，不知道往哪个方向移动，就会造成熵值太高，迷糊
Hell Fast·
降低抽象，提供特征，之前说的特征借讲，都是至关重要的
Hell Fast·
“This lack of space in working memory is a fundamental bottleneck of human cognition”