I've noticed that some women seem to have a knack for estimating a man's IQ just by looking at their face. I suspect that it's not facial symmetry, but rather the eyes that provide them with the information that allows them to be so accurate.

Significant progress has been made over the past decade in related fields. Unlike in the movie 'Gattaca,' where one needed to mask their flaws using another's DNA, nowadays one must consider how many secrets are inadvertently revealed by allowing their face and retinas to be scanned.

Perhaps recent dictators, such as the late Saddam Hussein, were ahead of the curve with their constant sunglass-wearing.

Can you explain how you could possibly "notice" this, accounting for your own ability to estimate IQ?