[sailingparrot]

> love the idea that computers figured out the knack in reading head bumps the humans just couldn't crack

So, natural selection has evolved a criminal gene and a linked head bumps gene, but hasn't given us human the ability to detect that? That sure would have been useful. Nature "knew" and patiently waited hundred of thousands of year, keeping that useless gene alive, that eventually computer vision would appear and finally allow us to detect it?

Yes, that sounds plausible. Let's push to prod.