A couple weeks ago @aeonofdiscord showed me "The Hitch-hiker's Guide to Artificial Intelligence" from 1986, a book by Richard Forsyth and Chris Naylor, which teaches readers the state-of-the-art in AI using... BASIC programming type-ins. There's some extremely minimal examples of expert systems, A* maze path search, alpha-beta game trees, etc. but one that made me curious was a "Perceptron image classifier" for machine vision. Image classification in 16kb? I had to see for myself if it would work, so I made a #Processing version. And, amazingly, it actually does - giving about 7 examples of a smile vs frown face, it can then distinguish between the two. Not bad for an idea from 1957!