Movement is the most extraordinary thing ever developed by living creatures. There is no other reason for having muscles, no other reason for having nerves in those muscles, and probably no other reason for having a brain. Everything that has ever been done in the history of humankind has only been possible because we are able to move. Movement involves not just walking or throwing a ball; it is also pulling faces, uttering words, and putting plans into action. Our brain coordinates its senses, and creates experience in order to produce movement — movement of the mouth or the hands, and
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