Duolingo’s battle for learning in an AI world (CEO Luis von Ahn) | Rapid Response

About Luis

• Founded Duolingo; surpassed $1B annual revenue in 2025
  
• Inventor of CAPTCHA, used globally to stop online spam.
  
• Created reCAPTCHA; sold it to Google in 2009
  
• Consulting professor of computer science at Carnegie Mellon