Re: [tlug] CAPTCHA on keitai

["Josh Glover" <jmglov@example.com>]

On 18/03/2008, Stephen J. Turnbull <stephen@example.com> wrote:

> The current state of the art as claimed by several scripts out on the
>  web I looked at 6 months ago is that any distortion that fools them
>  nine times out of ten will fool a human once out of two.  I don't
>  think that's an acceptable level of annoying your real visitors in
>  most cases.

No, I agree with you. I had forgotten the Turing Test aspects of the
problem; a case of not seeing the forest for the trees to be sure.

>  There may be "machine hard, human easy" distortions yet
>  to be discovered, but I wouldn't bet on it.

What about things like "is this a cat or a dog?" or simple arithmetic
like "2 + 2 = ?"?

-- 
Cheers,
Josh