3 ms·
Both recaptcha and duolingo were started by the brilliant Louis Von Ahn. I am a big fan of his work. He was the inspiration for my first startup, while at CMU.
by vasco_ 13y ago
Both recaptcha and duolingo were started by the brilliant Louis Von Ahn. I am a big fan of his work. He was the inspiration for my first startup, while at CMU.