The concept of nonconscious processing is not exactly new, Sigmund Freud introduced his model of the human mind in the essay “The unconscious” published in 1915. Yet, Freud’s view was that the principal purpose of unconscious and subconscious layers is storing the information rather than information acquisition and processing. Apparently, Freud underestimated nonconscious mind. According to a large body of psychological and neuropsychological research conducted in the past two decades (composed of data collected by 100+ independent researchers all over the world), what happens in our conscious minds is just the proverbial tip of the iceberg; our conscious thinking, perceiving, and learning accounts for only a small fraction of our total mental activity, with the rest being entirely nonconscious. This idea was first presented 35 years ago in “Cognitive Psychology and Information Processing” book by Roy Lachman, Janet Lachman, and Earl Butterfield:

            “Most of what we do goes on unconsciously. It is the exception, not the rule, when thinking is conscious, but by its very nature [i.e., because we cannot experience anything else], conscious thought seems the only sort. It is not the only sort; it is the minority.” (page 207)    

Our minds, as it turns out, really do function like the computers of the body; but the role of conscious mind is much more modest than thought before. It is certainly not a central processor (or CPU) but rather a set of peripheral devices, presenting an interface that interacts with the outside world. The actual bulk of the processing occurs in the nonconscious mind, which is the real CPU of our body. Our minds are also similarly proficient at multitasking; while we are busy experiencing a portion of what is going on around us, our minds are busy absorbing much of the rest of what is present in our environment.

Our conscious minds work much more slowly than our nonconscious minds, and are overall less adept at processing information, less efficient at the task. The nonconscious mind therefore can be said to be more intelligent than the conscious mind.