Neuroscientist David Eagleman proposes in his book Incognito: The Secret Lives of the Brain, that most of what you do, think and believe is generated by parts of your brain to which you have no access. His writing provokes thought and understanding.
The title of this book refers to its theme that we don’t really “know” ourselves. Eagleman describes how most of our thought processes are unconscious and not accessible to us, most of the activity going on without our being aware.
Almost the entirety of what happens in your mental life is not under your conscious control, and the truth is that it’s better this way. When consciousness meddles in details it doesn’t understand, the operation runs less effectively. One does not need to be consciously aware to perform sophisticated motor acts. We are not conscious of most things until we ask ourselves questions about them. The brain generally does not need to know most things; it merely knows how to go out and retrieve the data. It computes on a need-to-know basis. We are not conscious of much of anything until we ask ourselves about it. We are unaware of most of what should be obvious to our senses; it is only after deploying our attentional resources onto small bits of the scene that we become aware of what we were missing. Before we engage our concentration, we are typically not aware that we are not aware of those details. So not only is our perception of the world a construction that does not accurately represent the outside, but we additionally have the false impression of a full, rich picture when in fact we see only what we need to know, and no more. (p. 28)
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