Exploring the biggest questions of our time with the help of the world's greatest thinkers. Host Manoush Zomorodi inspires us to learn more about the world, our communities, and most importantly, ourselves.Get more brainy miscellany with TED Radio Hour+. Your subscription supports the show and unlocks a sponsor-free feed. Learn more at plus.npr.org/ted
https://www.npr.org/podcasts/510298/ted-radio-hour
#908: I Am Not A Robot
The remarkable story of the online "CAPTCHA" tests we've all taken to prove that we're not robots.