Ask HN: How would a reverse captcha work? A challenge that filtered out humans

Some very long calculation that a human would need time to parse, let alone compute, while instead a bot can do in milliseconds

I&#x27;m convinced that the bots will soon do better than humans on image recognition.<p>With speech recognition, humans have shown worse performance with completely random words and letters, and this was about at least a decade ago when the tech was worse. For example, a bot would likely identify DBDBBDD in speech better than a human.

Add a honeypot field for humans (visible) and bots (hidden). If visible honeypot field is filled or hidden one not filled, that means you have a human

How about a form that required clicking on an invisible button? A bot would see the button and click on it, while a human would just read whatever else was on the page and close the page.