That&#x27;s only because existing IQ tests aren&#x27;t normalized past 160. IQ is defined by a statistical distribution, and that requires sampling the general population. People with more than 160 IQ are so incredibly rare, there&#x27;s no samples to define that end of the distribution.<p>But that&#x27;s irrelevant to this. Because we are dealing with the actual genes that determine intelligence, we can estimate the exact distribution of intelligence, and predict where a set of genes would fall on that distribution. See my comment below.