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Look up Duolingo Incubator. That's how it was called. It was a revolutionary way to grow big at small cost. His captcha experience in crowdsourcing inspired him.
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Look up Duolingo Incubator. That's how it was called. It was a revolutionary way to grow big at small cost. His captcha experience in crowdsourcing inspired him.
Nice, didn’t know about their early course sourcing efforts