Metacognition: About knowing that you know or not

How do we know that we know and how much we know?

Cognition can be used to mean awareness or knowledge. Meta is used to mean behind or beyond in a referential manner. So, etymologically Metacognition means what is behind the knowledge, although in a self referential manner.

In the simplest word, metacognition is knowing your own knowledge.

American poet Maya Angelou in context of knowing your past had …