Comment by atoav

> pretty sure a neural network trained on IQs and photographs could find reliable signals of intelligence therein

Yeah maybe, however as a life-long photographer and former freelance DoP I would heavily caution on then using those images to infer a persons intelligence from that picture. Because in my experience the number of false-positives and false-negatives is high.

There are extremely intelligent people who always look like shit on camera, because they constantly move, so you always capture them with their mouth half open, mid blink. And then you have complete hollow-brains who look deep and dashing whenever a camera is around, but god forbid they open their mouth.

So if anybody decided to make machines decide who is intelligent based on pictures (sounds like modern eugenics), the amount of false classifications would be exhorbitant and have real consequences for real people.

And let's not forget that appearances can be altered, so once you use such a system those deemed to be most intelligent will be those who game it best. So judging intelligence directly is probably the more reliable way.