Highway of Life wrote: Agentshoe,
Don't get me wrong, I do appreciate your enthusiasm.
And of course, I'm all for persuing an alternative method to the CAPTCHA since it's very simple how that works.
If a bot can read it, a human can read it.
If a bot can't read it, a human can't read it.
But it does discourage bot registrations, so it is a must have, of course...
Have you considered one that does a CAPTCHA like picture... it would choose from a selection of pictures... say, animals or birds, for example.
Then the user would type in the name of the animal, and if they don't recognize the animal, can click a button that loads a new image/animal.
I don't know how feasable this would be, but it might be an idea to work off of.
Yeah, I've seen images come up in discussion, but that opens up the possibility for even more wrong answers than these. For example, a picture of a bird shows. Someone might type "small bird", "blue bird" etc. There's no definitive answer. The script I linked has room for multiple, acceptable answers so it cuts down on the margin of error.