Logic: Stratified Existential Quantification and the Unique Existential Quantifier

[patheally]

It's my belief that one day computers will become so sophisticated, we won't need captcha anymore. The reasoning is, if the the machine can post a relevant comment on the blog or site, why stop it? I've read posts from humans that I'd question passing the "Turing Test". Lol.

[parkourjordz]

I think this is very interesting - Surprised there aren't more comments :)

Another note: I have enjoyed all your introduction videos, thank you for giving me stuff to think about :D