A lot of the arguments here are silly. For example IQ has only a moderate correlation with income. Well yes, there are many other important skills for being successful and intelligence is just one of them. It doesn’t mean all else being equal I wouldn’t rather have a higher IQ.
Sometimes there is an outlier that makes the whole thing seem suspect in some way or another.
If a truly intelligent person were to achieve only a mediocre score on a test like this, the article could very well be a "measured" response to that discrepancy alone. "Extensively" measured really, this is quite technical and not a short blog post.
To the degree that it can be measured of course . . .
"Nassim Taleb on IQ" January 8, 2019
The reference in the study on Danish people is intriguing, but it may skew the concept of normality since Denmark is a statistical outlier, being at the positive extreme in many metrics. This raises questions about the generalizability of the findings. I think testing on Danish people is great to debunk the wrong idea about that measurement of intelligence is pseudocientific but doesn't help with the "success" concept in other societies.
Both articles offer a good foundation for further discussion on IQ, but I believe they fall short by not addressing key concepts like crystallized and fluid intelligence, as well as memory. These are crucial components of intelligence that go beyond traditional IQ measurement techniques and deserve more attention. Those concepts clearly shows that the concept of IQ is no a pseudocientific thing.
IQ testing incurs legal risk and yet companies use proxies like the wonderlic, because there is some correlation between IQ and competence, that is not possible to predict otherwise.