<p>While informative, the article, ignores the .5-.6 correlation between the IQ of parents and IQ of children. While the socioeconomic correlation between IQ and wealth may also explain the IQ of children, there is still a large genetic component. Kids with less of the innate intelligence the highest-paying jobs seem to select for (problem-solving and memorization) will still do worse in general to those who have such innate intelligence.</p>
<p>The article is right that you will never achieve your maximum potential without constant practice and adjustment. It just conveniently ignores the fact that humans are still on a gaussian distribution in relation to other humans on a wide variety of social and intellectual metrics.</p>