the whole world burns

Complex maths as a CAPTCHA

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I always wanted to set questions like "what is the difference between well-formedness and validity?" for XML talk, or "who directed Citizen Kane?" for film.

reCAPTCHA: “Digitizing Books One Word at a Time”

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We've all heard about spammers exploiting CAPTCHA-solving users for evil; reCAPTCHA does the same on the side of good, getting users to transcribe scanned text for book digitization projects. Great idea!

What the devil?

The Whole World Burns is the rephrase miniblog, containing links and other miscellaneous trifles.