What’s this?

There are three levels of expertise in any field:

Basic: At this level, we start to learn the common body of knowledge.

Advanced: We now practice our skills until they are second nature.

Expert: We have successfully integrated all of the knowledge and skills into our intuition.

Reaching expert level is not the end of the road. To achieve mastery, we need to know when to break the rules, ignore our knowledge, and reject the facts.