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A comment on Interview: Luis von Ahn on Duolingo - large-scale, crowdsourced translation. Parent comment

Re:Interview: Luis von Ahn on Duolingo - large-scale, crowds... by jchonphoenix on Wednesday November 30, 2011 @06:09PM (#3297316)
He was a Phd student at CMU then a Professor first before Google.

Source: I was there and doing research for him when all this happened.

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Re:Interview: Luis von Ahn on Duolingo - large-scale, crowds... by antics on Wednesday November 30, 2011 @09:21PM (#3297992)
Yeah, he was one of Manuel Blum's students, with whom he invented CAPTCHA. Do you know if he did a post-doc somewhere?
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