Here's a captcha idea: make people write a 100-word essay on a specific topic. If it's good, you're accepted and you won't have to do it again. If it's bad, you

Here's a captcha idea: make people write a 100-word essay on a specific topic. If it's good, you're accepted and you won't have to do it again. If it's bad, you're either a computer or cheap Nigerian labor. When we get to the point where we can't distinguish a computer from a human, we'll just let them be a part of the community.