SPY-CATCHER
For millions of years, our early ancestors ambled on this planet, navigating a very dangerous world. They did so by communicating effectively their needs, emotions, fears, and desires with each other. Impressively, they achieved this through the use of nonverbal communications such as physiological changes (flushed face), gestures (pointing hand), noises (grunting is not a word) and facial or body reactions (quizzical or frightened look). This has been part of our biological heritage for so long that we still primarily communicate nonverbally, not verbally, and why we need emotional icons in our written communication.Fortunately for us we evolved a system to immediately communicate to others how we feel and what we sense. If not for this, a room might be dangerously hot - not just warm and a swim in a lake might turn into hypothermia. If we had to think, even for a few seconds, at every perilous encounter (imagine a coiled rattle snake by your leg) we would have died out as a species. Instead we evolved to react to threats or anything that might harm us and not to think (the "freeze, flight, fight response" I talk about in Louder Than Words).
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