How I Built This with Guy Raz | 25 May 2020 | 1h 06m | Listen Later | iTunes
Interview with Luis von Ahn. Describes the development of CAPTCHA to distinguish humans from bots signing up to Yahoo!; the development of reCAPTCHA to distinguish humans from bots whilst simultaneously digitising books; the development of Duolingo, a language learning app; and the iteration to find a sustainable business model for Duolingo.

Duolingo recently listed, which reminded me of this podcast, one of the most memorable and inspiring I’ve heard on innovation and business.