Based on reading Cloudmark's white paper on their spam defense architecture, and some other things I've seen over the past year or so, I've come to the conclusion that I don't know enough AI to be taken seriously as an anti-spam (or some other unwanted traffic) software engineer (or evaluator of same). People who've recently taken AI classes that focus on topics such as machine learning know this stuff. It wasn't taught at all when I was an undergrad, and was only being introduced when I was a grad student, so I wouldn't have had the kind of exposure to it that people are getting now. I have to think about what I want to do about this. Assuming I want to pursue this, I have to either teach myself or take a class. Either will take a substantial amount of time that is currently being allocated to dancing, chorus, and piano.