Monday, April 10, 2006

Turing's Cat

If you read a lot of blogs, you've probably encountered the anti-spam gizmo known as a "captcha." Captchas are those weirdly distorted combinations of letters and numbers that you have to deconvolute in order to convince the server that you are human, and thus entitled to comment on the hosting site.

They work, but they are ugly, annoying, and give users headaches. Why not replace them with, say, kitten pictures?

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