The first CAPTCHA was developed in 1997 before the name came later, in 2003, as an acronym for 'Completely Automated Public Turing test to tell Computers and Humans Apart'. In a blog posted on the Cloudflare's website research engineer Thibault Meunier did a quick calculation based on its data suggesting an average user takes 32 seconds to complete a CAPTCHA. With 4.6 billion global internet users and an assumption the average user sees one CAPTCHA per 10 days, that equates to around 500 years wasted every day trying to prove we're not bots. But loss of productivity is not the only issue with the pop-up puzzles.