The blog post says, &quot;Specifically, I am unaware of any actual data that shows a correlation between raw intelligence, as measured by any of the standard metrics (educational achievement, intelligence tests, or skill at solving logic puzzles) and company success.&quot;<p>That&#x27;s just an argument from ignorance. According to Hacker News comment karma scores, one of my most popular comments ever was a comment that included a FAQ about what the research shows about company hiring procedures.[1] What the research says is that for hiring workers for any kind of job, a work-sample test and a test of general intelligence are about tied for effectiveness in identifying good job candidates. ALL hiring procedures sometimes miss good workers, and all hiring procedures sometimes result in hiring lousy workers, but if you want to optimize, the way to optimize is to hire workers who are good at doing the specific tasks you are hiring for (that&#x27;s what a work-sample test shows you) and how have good general cognitive ability, which shows as well as any indicator that they can learn to do new tasks in the future. References to the research literature are available in my previous comment, linked in the footnote. Anything else you do in hiring, for whatever reason, has less benefit to your company than checking whether job candidates can do the job tasks and checking whether the job candidates are smart or dull.<p>[1] <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=4613543" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=4613543</a>