This truly haunting notion, to not learn anything new, would further suggest that life itself is futile and meaningless. Perhaps, this is why we cling to some of our long-time unexamined beliefs and constructs. We unconsciously fear the challenge of self-examination, afraid of what we might find as much as what we might not. Our window on the universe is our five senses. Our interpretation of what these senses show us of the universe is our perception.
Senses are prone to llusion, thus affecting our perception.
Human beings are multiple-sensory perception living beings. We see, touch, smell, taste and hear that which is external to our body. It is to this perception that we seldom apply techniques of determining levels of validity. In the absence of such confidence evaluation, we are easily fooled, illuded into accepting that which is not for that which is. Most of us have seen optical illusions.