Can machines think?

IDEA No 70

CAPTCHA

In the dystopian sci-fi film Blade Runner (1982), the Voight-Kampff test employs more than 100 questions to determine if Rachael is a ‘replicant’. The reality is much simpler.

A distorted chain of words known as a CAPTCHA.

Luis von Ahn, inventor of the CAPTCHA.

The interrogation performed by Harrison Ford’s Rick Deckard is a form of Turing Test, a concept introduced by Alan Turing in his 1950 paper ‘Computing Machinery and Intelligence’. The paper opens with the words, ‘I propose to consider the question, ...

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