The article "Why Can't Robots Click The 'I'm Not A Robot' Box On Websites?" by Grant Piper explains how reCAPTCHA, a program created by Google to prevent bots from accessing websites, works. The author explains that reCAPTCHA doesn't simply test whether a user can click a box, but how they click it. Humans click erratically and slowly, while bots are programmed to click quickly and efficiently, allowing reCAPTCHA to distinguish between them. The article also discusses how reCAPTCHA is evolving to address more sophisticated bots by using invisible methods that scan a user's computer for clues about their identity.

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