I think the cats vs dogs ones were a bit more entertaining. Why is it that computers can drive cars on a highway, but they can't discern a human from a Nigeria

I think the cats vs dogs ones were a bit more entertaining. Why is it that computers can drive cars on a highway, but they can't discern a human from a Nigerian spam bot? The whole necessity should be embarrassing to programmers w/ access to a powerful server. If they put CAPTCHA's on the Xcode Build command, the whole problem would be solved within the week. Eat your own dogfood, developers.