The minute you know the answer to something, you stop searching for the answer. Knowing blocks learning.
This is the danger of knowing, or thinking you know. The fact is we never fully know anything.
Knowledge (i.e., propositional knowledge) refers to reliable justified beliefs, or claims that we have accepted as true based on good evidence, and which we have found reliable.
But claims are based on words and words are not reality. Reality is always more than words can contain. Which means that words never fully correspond to reality.
What we know is always less than what fully is. We can grow in knowledge, but we can never grasp it fully.
Which means we should be careful about knowing the answer because that answer is always partial.
Stay humble my friends.