become impatient. I start to think they are incompetent. But it is very easy to underestimate the importance of endless practice with practical skills. You learn them by doing, much more than by knowing. It becomes what psychologists call implicit memory. When we learn a new skill the brain has to work hard – it is a consciously directed process requiring frequent repetition and the expenditure of energy. But once it is learnt, the skill – the motor and sensory coordination of muscles by the brain – becomes unconscious, fast and efficient. Only a small area of the brain is activated when the
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