Context is key for learning. You cannot truly learn by listening or watching or reading, you must do it to understand. The teacher also cannot fully teach unless you practice.
Describe an orange to me and assume I don’t know what the color orange is or what a fruit is or what a circle is.
Have five blind people describe an elephant after touching different parts.
An attack can be defended with a very restful block. Almost no energy is required if you understand the angle of attack and have your antennae out.