I’ve often joked that the web is an excellent reflection of humanity and the human psyche. This is reflected in the fact that most internet traffic is generated by sex, trying to meet someone who likes you, or getting the free stuff you think you deserve. In the broader view – as often happens in the real world – the evolution of the web went something like this: some smart clever people create something cool, less smart people come along and join in, everybody has fun for a while, and then their stupider, greedier, eviler friends show up and eff it all up. This pattern is probably why a lot of humanity’s energy seems to be devoted to protecting itself. Like building thousands of nuclear bombs to make sure no-one uses them, or destroying your freedom to protect it. On the web, this behavior is why we have so many tools for proving you’re human, i.e., the many variations of the CAPTCHA (Completely Automated Turing Test To Tell Computers and Humans Apart). You know, those squiggly words you can’t read with your blurred vision and splitting headache the morning after a hard night of partying, when you’re trying to check your finances online to see if you burned your bank account in the last few hours of the night, the ones you don’t remember after buying the entire strip bar a round to prove to your favorite lap dancer that you’re loaded. It’s amusing that with Captchas we’re just protecting all the “good” web applications (useful web services) we write from “bad” web applications (spambots) we write. Typical human acts of futility. In any case, in spite of their assumed usefulness, Captchas have been cracked in a number of ways. Or have they? Jeff Atwood of CodingHorror.com points out some interesting fallacies in this article, and claims he has a 99% bot-blocking rate with what he calls a “naive captcha”, which is simply a well-designed captcha image that never changes! If you don’t think conventional Captchas are good enough, there a some alternative methods like this math-based Captcha, which will not only keep out spambots, but probably everyone but Stephen Hawking or Richard Feynman as well. Other versions include solving a tic-tac-toe puzzle, or this one, based on pictures of cats and dogs, or this one, which requires you to solve hieroglyphics. And then of course, companies like Google or Microsoft will try to figure out ways to make or save money with them. Microsoft’s idea is to make you look at ads; Google uses Captchas to make you read the words their scanning technology can’t. Yup. Your obstacle to the content you want is Google’s free labor force. Probably the best use of Captchas I’ve run across though is using them for making comics. This Something Awful forum may have started it, but there are amusing collections here and here. Some images may be NSFW. My quick stab at it is below.

Of course, I had to hit “refresh” like thirty times on the captcha page….