Luis von Ahn Quotes
Together with my advisor, Manuel Blum, I co-invented CAPTCHAs, or computer-generated tests that humans are routinely able to pass but that computers have not mastered (they are the squiggly computer letters that are prevalent across the web).
von Ahn, Luis. "I am Luis von Ahn, co-inventor of CAPTCHA, founder and CEO of Duolingo. Ask Me Anything!" Reddit, 28 Jan. 2014.
This quotation is particularly interesting when compared with {633126} that he said in his First Inaugural Address. His idealism was tempered some by his first 4 years in the Presidency.
The law enforcement and the intelligence agencies have been claiming for a number of years that etrong encryption (encryption which no one can crack with existing technology) if used by the general public would really hinder law enforcement and espionage efforts. The Federal government actually obtained a court order prohibiting the inventor of the stong encryption frm sharing the equations and techniques with anyone--as blatant an infringement to the right of free speech as there was been. The order was ignored and although the government tried to intimidate the developer by threatening him with prison. He refused to comply and the government finally dropeed the case, as the courts would almost certainly find such a jailing unconstitutional. However, although they tell the courts that there is a clear and present danger if terrorists use encryption, no one had, up to that time, found a single case where being able to decypher the encryption would have prevented an attack.
Luis von Ahn is a Guatemalan entrepreneur and a Consulting Professor in the Computer Science Department at Carnegie Mellon University in Pittsburgh, Pennsylvania. He is known as one of the pioneers of crowdsourcing. He is the founder of the company reCAPTCHA, which was sold to Google in 2009, and the co-founder and CEO of Duolingo, the world's most popular language-learning platform.