What is intelligence? A person may be immensely knowledgeable in a certain academic field, however, completely inept in another. Does this mean that the person is intelligent or simply unknowledgeable in certain areas? Intelligence is having the capacity to apply knowledge.
There are many interpretations as to what intelligence is, although to the person in the street it is generally associated with academic success. This disregards areas such as common sense and practical skills, despite the fact that they both use the brain to achieve their outcomes. For example, a professional chess player is generally perceived as more intelligent than a top class chef. Although each has reached the top of their trade and therefore should be classed as intelligent, the chef's job is seen as more practical than intellectual.
Many would agree that person lacking the ability to apply knowledge couldn't be considered intelligent. For instance, if an auto mechanic failed a physics exam, that person is considered unintelligent because the person failed to or was incapable to apply knowledge. However, if a physicist were to take the examination, the chance of failing would diminish because the physicist is intelligent in the field of physics.
Intelligence, though, cannot be anchored down to academic success. For instance, a star running back could not be productive if he did not have the intelligence to rapidly collect data, process the data, make a decision and act in accordance with that decision. In fact, the running back is going through the stages of this high level process so fast that people of lower intelligence don't realize what is taking place. Because they can't see the stages of the process as they unfold, they think what they see is all there is to the process. One could argue that this type of thinking is typical of people whose intelligence is not as high as they think it is.
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