Duolingo CEO Luis von Ahn
This Is Success
00:00
Can You Tell Us What a Capture Is?
When you were a child, your favourite video game was buot legging. After studying computer science at Carnegie melon University, you became involved in crowd sourcing. You came up with the idea of 'capture' to stop spam being sent by people using free male email accounts. This is now used on almost every major web site around the world. Do you regret not making more money? I mean, it ended up working out pretty well for me so have much regret about that - i'm happy with it.
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