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Jan 6, 2010

Luis von Ahn harnesses brainpower

from PopTech Audio: PopCasts Hosted by PopTech

Computer scientist Luis von Ahn’s programs harness the human brainpower to solve complex problems. von Ahn invented ReCaptcha, a program that uses squiggly characters that humans easily decipher but blocks spambots – and helps digitize millions of old texts. The CMU professor also makes games that use human knowledge to improve computers. Find them at gwap.com.

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