> Even Google's CAPTCHA was asking me recently to pick the "bridge" from the pictures. There was no bridge. That's to be expected. It even says at the top of t

> Even Google's CAPTCHA was asking me recently to pick the "bridge" from the pictures. There was no bridge. That's to be expected. It even says at the top of the challenge box: "If there's no match, just click next". Negative reinforcement is reinforcement too.