Not all understanding needs formal methods. With understanding as a goal, you change how you learn. The question stops being, “How do I cram all of this into my head?” and becomes, “How do I make all of this obvious?”

Feedback is obviously useful. But there are some common misconceptions.

The first is that feedback has to come from people. This is false. “Did that work?” can often be answered directly from the environment. Human feedback can introduce biases, delays and social difficulties, so it isn’t always ideal.