Meh, I'll seriously bite then.
This is absolutely bogus.
First I'll amuse myself... *shrug*
A 'dumb' person doing something vaguely right will take great pride, in his attempts to belong. This is natural.
A 'smart' person realizes that, although he might excel in something, he will not excel in everything, and may at times wish he would excel in other things. Which will naturally show as an inferior sensation.
I sense that is the hypothesis of the article. But now for the real problem.
But the contrast being made between 'dumb' and 'smart' people is a short-sighted and narrow-minded perspective at best. To keep it MBTI style: everyone has their own set of skills. Be it intellectually, or emotionally. Intuitively or sensory. It is a fact that each brain is capable of near similar possibilities, and our strengths merely lie in our preferences. So there are no 'dumb' or 'smart' people.
I don't have inferiority complexes. I am painfully aware of both my geniosity in some areas and my severe short-comings in other areas. But I take solice in the fact that it gives me a unique identity. And that is something everyone should be consciously proud off. My self-confidence amazes me at times, I have a big ego, I have my strengths and my weaknesses. I am neither dumb nor smart.
Where I can see an article like this and put it off as bogus merely upon looking into it, seeing it has no evident usefullness whatsoever as it painstakingly attempts to get results out of an obviously incomplete function. There will be something that stands against that, something I am incapable of, where others may excel.
Geniosity resides within us all.
There is something to be said about people who use that and people who don't use it though. But the capability still remains.