Luis von Ahn and his colleagues invented the CAPTCHA system in 2003, and the acronym actually stands for Completely Automated Public Turing test to tell Computers and Humans Apart.

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Luis von Ahn and his colleagues invented the CAPTCHA system in 2003, and the acronym actually stands for Completely Automated Public Turing test to tell Computers and Humans Apart. Originally designed to block malicious spam bots from flooding websites, the system has gradually evolved into a massive unpaid global labor force. Every time you identify a crosswalk, traffic light, or slightly blurry bicycle to prove your humanity, you are secretly training Google's autonomous driving AI for free. You are not just logging into your bank account, you are providing uncompensated data annotation for a trillion-dollar megacorporation that still cannot figure out how to stop literal automated robots from buying up all the concert tickets before you do